diff --git a/homeassistant/backup_restore.py b/homeassistant/backup_restore.py
index 3d24d807a06..9287aa2bf1b 100644
--- a/homeassistant/backup_restore.py
+++ b/homeassistant/backup_restore.py
@@ -18,6 +18,7 @@ import securetar
 from .const import __version__ as HA_VERSION
 
 RESTORE_BACKUP_FILE = ".HA_RESTORE"
+RESTORE_BACKUP_RESULT_FILE = ".HA_RESTORE_RESULT"
 KEEP_BACKUPS = ("backups",)
 KEEP_DATABASE = (
     "home-assistant_v2.db",
@@ -62,7 +63,10 @@ def restore_backup_file_content(config_dir: Path) -> RestoreBackupFileContent |
             restore_database=instruction_content["restore_database"],
             restore_homeassistant=instruction_content["restore_homeassistant"],
         )
-    except (FileNotFoundError, KeyError, json.JSONDecodeError):
+    except FileNotFoundError:
+        return None
+    except (KeyError, json.JSONDecodeError) as err:
+        _write_restore_result_file(config_dir, False, err)
         return None
     finally:
         # Always remove the backup instruction file to prevent a boot loop
@@ -159,6 +163,23 @@ def _extract_backup(
                     )
 
 
+def _write_restore_result_file(
+    config_dir: Path, success: bool, error: Exception | None
+) -> None:
+    """Write the restore result file."""
+    result_path = config_dir.joinpath(RESTORE_BACKUP_RESULT_FILE)
+    result_path.write_text(
+        json.dumps(
+            {
+                "success": success,
+                "error": str(error) if error else None,
+                "error_type": str(type(error).__name__) if error else None,
+            }
+        ),
+        encoding="utf-8",
+    )
+
+
 def restore_backup(config_dir_path: str) -> bool:
     """Restore the backup file if any.
 
@@ -177,7 +198,14 @@ def restore_backup(config_dir_path: str) -> bool:
             restore_content=restore_content,
         )
     except FileNotFoundError as err:
-        raise ValueError(f"Backup file {backup_file_path} does not exist") from err
+        file_not_found = ValueError(f"Backup file {backup_file_path} does not exist")
+        _write_restore_result_file(config_dir, False, file_not_found)
+        raise file_not_found from err
+    except Exception as err:
+        _write_restore_result_file(config_dir, False, err)
+        raise
+    else:
+        _write_restore_result_file(config_dir, True, None)
     if restore_content.remove_after_restore:
         backup_file_path.unlink(missing_ok=True)
     _LOGGER.info("Restore complete, restarting")
diff --git a/homeassistant/components/backup/__init__.py b/homeassistant/components/backup/__init__.py
index ce3fea80f67..d3903c2d679 100644
--- a/homeassistant/components/backup/__init__.py
+++ b/homeassistant/components/backup/__init__.py
@@ -26,6 +26,7 @@ from .manager import (
     BackupReaderWriterError,
     CoreBackupReaderWriter,
     CreateBackupEvent,
+    IdleEvent,
     IncorrectPasswordError,
     ManagerBackup,
     NewBackup,
@@ -47,6 +48,7 @@ __all__ = [
     "BackupReaderWriterError",
     "CreateBackupEvent",
     "Folder",
+    "IdleEvent",
     "IncorrectPasswordError",
     "LocalBackupAgent",
     "ManagerBackup",
diff --git a/homeassistant/components/backup/manager.py b/homeassistant/components/backup/manager.py
index 1f439160381..fc56505e343 100644
--- a/homeassistant/components/backup/manager.py
+++ b/homeassistant/components/backup/manager.py
@@ -19,7 +19,11 @@ from typing import IO, TYPE_CHECKING, Any, Protocol, TypedDict, cast
 import aiohttp
 from securetar import SecureTarFile, atomic_contents_add
 
-from homeassistant.backup_restore import RESTORE_BACKUP_FILE, password_to_key
+from homeassistant.backup_restore import (
+    RESTORE_BACKUP_FILE,
+    RESTORE_BACKUP_RESULT_FILE,
+    password_to_key,
+)
 from homeassistant.const import __version__ as HAVERSION
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers import (
@@ -28,7 +32,7 @@ from homeassistant.helpers import (
     issue_registry as ir,
 )
 from homeassistant.helpers.json import json_bytes
-from homeassistant.util import dt as dt_util
+from homeassistant.util import dt as dt_util, json as json_util
 
 from . import util as backup_util
 from .agent import (
@@ -261,6 +265,14 @@ class BackupReaderWriter(abc.ABC):
     ) -> None:
         """Restore a backup."""
 
+    @abc.abstractmethod
+    async def async_resume_restore_progress_after_restart(
+        self,
+        *,
+        on_progress: Callable[[RestoreBackupEvent | IdleEvent], None],
+    ) -> None:
+        """Get restore events after core restart."""
+
 
 class BackupReaderWriterError(BackupError):
     """Backup reader/writer error."""
@@ -318,6 +330,10 @@ class BackupManager:
             self.config.load(stored["config"])
             self.known_backups.load(stored["backups"])
 
+        await self._reader_writer.async_resume_restore_progress_after_restart(
+            on_progress=self.async_on_backup_event
+        )
+
         await self.load_platforms()
 
     @property
@@ -1605,6 +1621,54 @@ class CoreBackupReaderWriter(BackupReaderWriter):
         )
         await self._hass.services.async_call("homeassistant", "restart", blocking=True)
 
+    async def async_resume_restore_progress_after_restart(
+        self,
+        *,
+        on_progress: Callable[[RestoreBackupEvent | IdleEvent], None],
+    ) -> None:
+        """Check restore status after core restart."""
+
+        def _read_restore_file() -> json_util.JsonObjectType | None:
+            """Read the restore file."""
+            result_path = Path(self._hass.config.path(RESTORE_BACKUP_RESULT_FILE))
+
+            try:
+                restore_result = json_util.json_loads_object(result_path.read_bytes())
+            except FileNotFoundError:
+                return None
+            finally:
+                try:
+                    result_path.unlink(missing_ok=True)
+                except OSError as err:
+                    LOGGER.warning(
+                        "Unexpected error deleting backup restore result file: %s %s",
+                        type(err),
+                        err,
+                    )
+
+            return restore_result
+
+        restore_result = await self._hass.async_add_executor_job(_read_restore_file)
+        if not restore_result:
+            return
+
+        success = restore_result["success"]
+        if not success:
+            LOGGER.warning(
+                "Backup restore failed with %s: %s",
+                restore_result["error_type"],
+                restore_result["error"],
+            )
+        state = RestoreBackupState.COMPLETED if success else RestoreBackupState.FAILED
+        on_progress(
+            RestoreBackupEvent(
+                reason=cast(str, restore_result["error"]),
+                stage=None,
+                state=state,
+            )
+        )
+        on_progress(IdleEvent())
+
 
 def _generate_backup_id(date: str, name: str) -> str:
     """Generate a backup ID."""
diff --git a/homeassistant/components/backup/websocket.py b/homeassistant/components/backup/websocket.py
index d8a425ab6ba..feb762bb50b 100644
--- a/homeassistant/components/backup/websocket.py
+++ b/homeassistant/components/backup/websocket.py
@@ -60,8 +60,10 @@ async def handle_info(
             "backups": [backup.as_frontend_json() for backup in backups.values()],
             "last_attempted_automatic_backup": manager.config.data.last_attempted_automatic_backup,
             "last_completed_automatic_backup": manager.config.data.last_completed_automatic_backup,
+            "last_non_idle_event": manager.last_non_idle_event,
             "next_automatic_backup": manager.config.data.schedule.next_automatic_backup,
             "next_automatic_backup_additional": manager.config.data.schedule.next_automatic_backup_additional,
+            "state": manager.state,
         },
     )
 
diff --git a/homeassistant/components/hassio/backup.py b/homeassistant/components/hassio/backup.py
index 9362c03b0be..5318e4cd351 100644
--- a/homeassistant/components/hassio/backup.py
+++ b/homeassistant/components/hassio/backup.py
@@ -29,6 +29,7 @@ from homeassistant.components.backup import (
     BackupReaderWriterError,
     CreateBackupEvent,
     Folder,
+    IdleEvent,
     IncorrectPasswordError,
     NewBackup,
     RestoreBackupEvent,
@@ -456,6 +457,13 @@ class SupervisorBackupReaderWriter(BackupReaderWriter):
         finally:
             unsub()
 
+    async def async_resume_restore_progress_after_restart(
+        self,
+        *,
+        on_progress: Callable[[RestoreBackupEvent | IdleEvent], None],
+    ) -> None:
+        """Check restore status after core restart."""
+
     @callback
     def _async_listen_job_events(
         self, job_id: str, on_event: Callable[[Mapping[str, Any]], None]
diff --git a/tests/components/backup/snapshots/test_backup.ambr b/tests/components/backup/snapshots/test_backup.ambr
index 441f79276a5..032eb7ac537 100644
--- a/tests/components/backup/snapshots/test_backup.ambr
+++ b/tests/components/backup/snapshots/test_backup.ambr
@@ -85,8 +85,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -117,8 +119,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -149,8 +153,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -181,8 +187,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -213,8 +221,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
diff --git a/tests/components/backup/snapshots/test_websocket.ambr b/tests/components/backup/snapshots/test_websocket.ambr
index f5a22201138..7ea911496de 100644
--- a/tests/components/backup/snapshots/test_websocket.ambr
+++ b/tests/components/backup/snapshots/test_websocket.ambr
@@ -2977,8 +2977,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3005,8 +3007,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3050,8 +3054,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3078,8 +3084,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3123,8 +3131,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3179,8 +3189,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3219,8 +3231,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3270,8 +3284,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3319,8 +3335,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3375,8 +3393,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3432,8 +3452,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3490,8 +3512,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3546,8 +3570,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3602,8 +3628,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3658,8 +3686,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -3715,8 +3745,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -4181,8 +4213,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -4226,8 +4260,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -4275,8 +4311,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -4343,8 +4381,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
@@ -4389,8 +4429,10 @@
       ]),
       'last_attempted_automatic_backup': None,
       'last_completed_automatic_backup': None,
+      'last_non_idle_event': None,
       'next_automatic_backup': None,
       'next_automatic_backup_additional': False,
+      'state': 'idle',
     }),
     'success': True,
     'type': 'result',
diff --git a/tests/components/backup/test_manager.py b/tests/components/backup/test_manager.py
index d2993e53410..5e5b0df74cd 100644
--- a/tests/components/backup/test_manager.py
+++ b/tests/components/backup/test_manager.py
@@ -397,8 +397,10 @@ async def test_initiate_backup(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     await ws_client.send_json_auto_id({"type": "backup/subscribe_events"})
@@ -626,8 +628,10 @@ async def test_initiate_backup_with_agent_error(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     await ws_client.send_json_auto_id(
@@ -724,8 +728,15 @@ async def test_initiate_backup_with_agent_error(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": {
+            "manager_state": "create_backup",
+            "reason": "upload_failed",
+            "stage": None,
+            "state": "failed",
+        },
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     await hass.async_block_till_done()
@@ -993,8 +1004,10 @@ async def test_initiate_backup_non_agent_upload_error(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     await ws_client.send_json_auto_id({"type": "backup/subscribe_events"})
@@ -1109,8 +1122,10 @@ async def test_initiate_backup_with_task_error(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     await ws_client.send_json_auto_id({"type": "backup/subscribe_events"})
@@ -1217,8 +1232,10 @@ async def test_initiate_backup_file_error(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     await ws_client.send_json_auto_id({"type": "backup/subscribe_events"})
@@ -1703,8 +1720,10 @@ async def test_receive_backup_agent_error(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     await ws_client.send_json_auto_id(
@@ -1786,8 +1805,15 @@ async def test_receive_backup_agent_error(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": {
+            "manager_state": "receive_backup",
+            "reason": None,
+            "stage": None,
+            "state": "completed",
+        },
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     await hass.async_block_till_done()
@@ -1848,8 +1874,10 @@ async def test_receive_backup_non_agent_upload_error(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     await ws_client.send_json_auto_id({"type": "backup/subscribe_events"})
@@ -1973,8 +2001,10 @@ async def test_receive_backup_file_write_error(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     await ws_client.send_json_auto_id({"type": "backup/subscribe_events"})
@@ -2086,8 +2116,10 @@ async def test_receive_backup_read_tar_error(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     await ws_client.send_json_auto_id({"type": "backup/subscribe_events"})
@@ -2264,8 +2296,10 @@ async def test_receive_backup_file_read_error(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     await ws_client.send_json_auto_id({"type": "backup/subscribe_events"})
@@ -3034,8 +3068,10 @@ async def test_initiate_backup_per_agent_encryption(
         "agent_errors": {},
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
     for command in commands:
@@ -3127,3 +3163,88 @@ async def test_initiate_backup_per_agent_encryption(
         "name": "test",
         "with_automatic_settings": False,
     }
+
+
+@pytest.mark.parametrize(
+    ("restore_result", "last_non_idle_event"),
+    [
+        (
+            {"error": None, "error_type": None, "success": True},
+            {
+                "manager_state": "restore_backup",
+                "reason": None,
+                "stage": None,
+                "state": "completed",
+            },
+        ),
+        (
+            {"error": "Boom!", "error_type": "ValueError", "success": False},
+            {
+                "manager_state": "restore_backup",
+                "reason": "Boom!",
+                "stage": None,
+                "state": "failed",
+            },
+        ),
+    ],
+)
+async def test_restore_progress_after_restart(
+    hass: HomeAssistant,
+    hass_ws_client: WebSocketGenerator,
+    restore_result: dict[str, Any],
+    last_non_idle_event: dict[str, Any],
+) -> None:
+    """Test restore backup progress after restart."""
+
+    with patch(
+        "pathlib.Path.read_bytes", return_value=json.dumps(restore_result).encode()
+    ):
+        await async_setup_component(hass, DOMAIN, {})
+        await hass.async_block_till_done()
+
+    ws_client = await hass_ws_client(hass)
+    await ws_client.send_json_auto_id({"type": "backup/info"})
+    result = await ws_client.receive_json()
+    assert result["success"] is True
+    assert result["result"] == {
+        "agent_errors": {},
+        "backups": [],
+        "last_attempted_automatic_backup": None,
+        "last_completed_automatic_backup": None,
+        "last_non_idle_event": last_non_idle_event,
+        "next_automatic_backup": None,
+        "next_automatic_backup_additional": False,
+        "state": "idle",
+    }
+
+
+async def test_restore_progress_after_restart_fail_to_remove(
+    hass: HomeAssistant,
+    hass_ws_client: WebSocketGenerator,
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    """Test restore backup progress after restart when failing to remove result file."""
+
+    with patch("pathlib.Path.unlink", side_effect=OSError("Boom!")):
+        await async_setup_component(hass, DOMAIN, {})
+        await hass.async_block_till_done()
+
+    ws_client = await hass_ws_client(hass)
+    await ws_client.send_json_auto_id({"type": "backup/info"})
+    result = await ws_client.receive_json()
+    assert result["success"] is True
+    assert result["result"] == {
+        "agent_errors": {},
+        "backups": [],
+        "last_attempted_automatic_backup": None,
+        "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
+        "next_automatic_backup": None,
+        "next_automatic_backup_additional": False,
+        "state": "idle",
+    }
+
+    assert (
+        "Unexpected error deleting backup restore result file: <class 'OSError'> Boom!"
+        in caplog.text
+    )
diff --git a/tests/components/cloud/test_backup.py b/tests/components/cloud/test_backup.py
index 516dacd5f3d..c2513168ab9 100644
--- a/tests/components/cloud/test_backup.py
+++ b/tests/components/cloud/test_backup.py
@@ -205,8 +205,10 @@ async def test_agents_list_backups_fail_cloud(
         "backups": [],
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
 
diff --git a/tests/components/onboarding/snapshots/test_views.ambr b/tests/components/onboarding/snapshots/test_views.ambr
index 90428055823..b57c6cf96dd 100644
--- a/tests/components/onboarding/snapshots/test_views.ambr
+++ b/tests/components/onboarding/snapshots/test_views.ambr
@@ -10,9 +10,12 @@
             'version': '1.0.0',
           }),
         ]),
-        'agent_ids': list([
-          'backup.local',
-        ]),
+        'agents': dict({
+          'backup.local': dict({
+            'protected': True,
+            'size': 0,
+          }),
+        }),
         'backup_id': 'abc123',
         'database_included': True,
         'date': '1970-01-01T00:00:00.000Z',
@@ -25,16 +28,17 @@
         'homeassistant_included': True,
         'homeassistant_version': '2024.12.0',
         'name': 'Test',
-        'protected': False,
-        'size': 0,
         'with_automatic_settings': True,
       }),
       dict({
         'addons': list([
         ]),
-        'agent_ids': list([
-          'test.remote',
-        ]),
+        'agents': dict({
+          'test.remote': dict({
+            'protected': True,
+            'size': 0,
+          }),
+        }),
         'backup_id': 'def456',
         'database_included': False,
         'date': '1980-01-01T00:00:00.000Z',
@@ -47,8 +51,6 @@
         'homeassistant_included': True,
         'homeassistant_version': '2024.12.0',
         'name': 'Test 2',
-        'protected': False,
-        'size': 1,
         'with_automatic_settings': None,
       }),
     ]),
diff --git a/tests/components/onboarding/test_views.py b/tests/components/onboarding/test_views.py
index 683d2c370f2..98f6426609e 100644
--- a/tests/components/onboarding/test_views.py
+++ b/tests/components/onboarding/test_views.py
@@ -798,6 +798,9 @@ async def test_onboarding_backup_info(
     backups = {
         "abc123": backup.ManagerBackup(
             addons=[backup.AddonInfo(name="Test", slug="test", version="1.0.0")],
+            agents={
+                "backup.local": backup.manager.AgentBackupStatus(protected=True, size=0)
+            },
             backup_id="abc123",
             date="1970-01-01T00:00:00.000Z",
             database_included=True,
@@ -806,14 +809,14 @@ async def test_onboarding_backup_info(
             homeassistant_included=True,
             homeassistant_version="2024.12.0",
             name="Test",
-            protected=False,
-            size=0,
-            agent_ids=["backup.local"],
             failed_agent_ids=[],
             with_automatic_settings=True,
         ),
         "def456": backup.ManagerBackup(
             addons=[],
+            agents={
+                "test.remote": backup.manager.AgentBackupStatus(protected=True, size=0)
+            },
             backup_id="def456",
             date="1980-01-01T00:00:00.000Z",
             database_included=False,
@@ -825,9 +828,6 @@ async def test_onboarding_backup_info(
             homeassistant_included=True,
             homeassistant_version="2024.12.0",
             name="Test 2",
-            protected=False,
-            size=1,
-            agent_ids=["test.remote"],
             failed_agent_ids=[],
             with_automatic_settings=None,
         ),
diff --git a/tests/components/synology_dsm/test_backup.py b/tests/components/synology_dsm/test_backup.py
index 0d4fd0dc080..cdbc5934c5f 100644
--- a/tests/components/synology_dsm/test_backup.py
+++ b/tests/components/synology_dsm/test_backup.py
@@ -332,8 +332,10 @@ async def test_agents_list_backups_error(
         "backups": [],
         "last_attempted_automatic_backup": None,
         "last_completed_automatic_backup": None,
+        "last_non_idle_event": None,
         "next_automatic_backup": None,
         "next_automatic_backup_additional": False,
+        "state": "idle",
     }
 
 
diff --git a/tests/test_backup_restore.py b/tests/test_backup_restore.py
index 10ea64a6a61..4c6bc930667 100644
--- a/tests/test_backup_restore.py
+++ b/tests/test_backup_restore.py
@@ -1,7 +1,10 @@
 """Test methods in backup_restore."""
 
+from collections.abc import Generator
+import json
 from pathlib import Path
 import tarfile
+from typing import Any
 from unittest import mock
 
 import pytest
@@ -11,6 +14,23 @@ from homeassistant import backup_restore
 from .common import get_test_config_dir
 
 
+@pytest.fixture(autouse=True)
+def remove_restore_result_file() -> Generator[None, Any, Any]:
+    """Remove the restore result file."""
+    yield
+    Path(get_test_config_dir(".HA_RESTORE_RESULT")).unlink(missing_ok=True)
+
+
+def restore_result_file_content() -> dict[str, Any] | None:
+    """Return the content of the restore result file."""
+    try:
+        return json.loads(
+            Path(get_test_config_dir(".HA_RESTORE_RESULT")).read_text("utf-8")
+        )
+    except FileNotFoundError:
+        return None
+
+
 @pytest.mark.parametrize(
     ("side_effect", "content", "expected"),
     [
@@ -87,6 +107,11 @@ def test_restoring_backup_that_does_not_exist() -> None:
         ),
     ):
         assert backup_restore.restore_backup(Path(get_test_config_dir())) is False
+    assert restore_result_file_content() == {
+        "error": f"Backup file {backup_file_path} does not exist",
+        "error_type": "ValueError",
+        "success": False,
+    }
 
 
 def test_restoring_backup_when_instructions_can_not_be_read() -> None:
@@ -98,6 +123,7 @@ def test_restoring_backup_when_instructions_can_not_be_read() -> None:
         ),
     ):
         assert backup_restore.restore_backup(Path(get_test_config_dir())) is False
+    assert restore_result_file_content() is None
 
 
 def test_restoring_backup_that_is_not_a_file() -> None:
@@ -121,6 +147,11 @@ def test_restoring_backup_that_is_not_a_file() -> None:
         ),
     ):
         assert backup_restore.restore_backup(Path(get_test_config_dir())) is False
+    assert restore_result_file_content() == {
+        "error": f"Backup file {backup_file_path} does not exist",
+        "error_type": "ValueError",
+        "success": False,
+    }
 
 
 def test_aborting_for_older_versions() -> None:
@@ -152,6 +183,13 @@ def test_aborting_for_older_versions() -> None:
         ),
     ):
         assert backup_restore.restore_backup(config_dir) is True
+    assert restore_result_file_content() == {
+        "error": (
+            "You need at least Home Assistant version 9999.99.99 to restore this backup"
+        ),
+        "error_type": "ValueError",
+        "success": False,
+    }
 
 
 @pytest.mark.parametrize(
@@ -280,6 +318,11 @@ def test_removal_of_current_configuration_when_restoring(
         assert removed_directories == {
             Path(config_dir, d) for d in expected_removed_directories
         }
+    assert restore_result_file_content() == {
+        "error": None,
+        "error_type": None,
+        "success": True,
+    }
 
 
 def test_extracting_the_contents_of_a_backup_file() -> None:
@@ -332,6 +375,11 @@ def test_extracting_the_contents_of_a_backup_file() -> None:
         assert {
             member.name for member in extractall_mock.mock_calls[-1].kwargs["members"]
         } == {"data", "data/.HA_VERSION", "data/.storage", "data/www"}
+    assert restore_result_file_content() == {
+        "error": None,
+        "error_type": None,
+        "success": True,
+    }
 
 
 @pytest.mark.parametrize(
@@ -362,6 +410,11 @@ def test_remove_backup_file_after_restore(
     assert mock_unlink.call_count == unlink_calls
     for call in mock_unlink.mock_calls:
         assert call.args[0] == backup_file_path
+    assert restore_result_file_content() == {
+        "error": None,
+        "error_type": None,
+        "success": True,
+    }
 
 
 @pytest.mark.parametrize(