# Windows 11 backup: Windows Backup, OneDrive or File History?

> Compare Windows Backup, OneDrive and File History for files, versions and full-system recovery, and build a 3-2-1 plan that you have actually restored.

**Tested on**

- Build: 26300.9457
- Edition: Home / Pro
- Architecture: x64
- Evidence: E1
- Verified: 2026-10-28

## The short answer

**Sync is not backup.** OneDrive keeps a copy in the cloud, but if you delete a file and the deletion syncs, the cloud copy goes too (version history may save you, if it is enabled and you notice in time).

Use at least two different mechanisms:

1. **Files:** OneDrive or Windows Backup for continuous copy + version history.
2. **Offline copy:** an external SSD/NAS, disconnected after the backup.
3. **System:** a full image or a tested reinstall plan, so a dead SSD is an inconvenience, not a data loss event.

Test a restore before you trust any of them.

## The three options

| | Windows Backup | OneDrive | File History |
|---|---|---|---|
| Primary job | Files/folders/settings to OneDrive | Sync + cloud copy | Versioned file copies to a drive |
| Needs Microsoft account | Yes | Yes | No |
| Offline copy | No | No (unless you download) | Yes, external drive |
| Full system image | No | No | No |
| Version history | Limited by OneDrive | Yes | Yes, per file |
| Best for | Home PC + OneDrive | Daily documents | A local external drive |

Windows Backup is the modern consumer flow; File History still exists but is not a full image tool. Neither replaces a real image/restore plan.

## A practical 3-2-1 plan

- **3 copies:** working file, cloud/OneDrive copy, offline external copy.
- **2 media:** internal SSD + external SSD/NAS (not a second partition).
- **1 offsite:** cloud or a drive kept somewhere else.

For the OS:

- Keep a Windows install USB and your driver pack.
- Keep a full image if you have a tool you trust and have restored it once.
- Otherwise, keep a written reinstall + app list + licence list. That is slower but honest.

## Before you rely on it

1. Pick one important folder.
2. Delete a test file or restore a previous version.
3. Confirm the restore works on a clean profile or another PC.
4. Check the backup job actually ran (not just “enabled”).
5. Save the BitLocker recovery key outside the machine.

> **Caution: Cloud sync propagates mistakes**
>
> If ransomware or a mistaken delete syncs before you notice, the cloud copy is affected too. Version history and an offline copy are the safety net, not the sync client alone.

## What not to do

- Do not use a second partition on the same disk as “backup”.
- Do not keep the external drive connected 24/7; ransomware can encrypt it.
- Do not assume OneDrive covers `AppData`, VMs or a database.
- Do not enable BitLocker without saving the recovery key.
- Do not call a backup “verified” until you have restored something.

## Sources

- [Microsoft — Windows Backup](https://learn.microsoft.com/en-us/windows/configuration/windows-backup/)
- [Microsoft — OneDrive version history](https://support.microsoft.com/en-us/office/restore-a-previous-version-of-a-file-in-onedrive-159cad6d-d76e-4981-88ef-de6e96c93893)
- [Microsoft — File History](https://support.microsoft.com/en-us/windows/experience/backup-recovery/backup-and-restore-with-file-history)

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Source: https://winbook.fyi/en/windows/security/backup/