How to test a Windows backup before you need it

A backup icon saying “On” is not the same as a file you can restore. This short drill checks whether a real copy exists and whether you know how to retrieve it. It does not require deleting an original file.

Run a safe restore drill​

1. Choose a small, non-sensitive document in a folder your backup is meant to cover. Add a unique line such as “restore test September 2026” and save it.
2. Let the backup complete. For Windows File History, confirm the external drive or network location is connected and File History is on.
3. Open File Explorer, right-click the file or its folder and choose Restore previous versions. Preview the backed-up version, then use Restore to... and select a separate test folder. Do not overwrite the original.
4. Open the restored copy. Verify the unique line and record the backup date. Delete only the test copy when finished.

Interpret the result​

No version appears? The folder may not be covered, the drive may be disconnected or the backup may not have run yet. The file opens but is older? You now know your realistic recovery point. The copy is unreadable? Investigate before relying on that backup. Microsoft's File History instructions show the restore and “Restore to” controls.

Keep another copy separate from the PC and its always-connected drives. A successful single-file test proves that one recovery path worked today, not that every file or a full system restore will work.

Repeat the drill​

Schedule another single-file restore after a backup setting, drive or computer changes. Test a different important folder next time. If the backup tool reports success but the file cannot be restored, fix that gap now rather than waiting for a real loss.