How to Back Up Computer Files and Check They Restore

Choose what you need to protect

A file in Documents, a photo in an app library and a company database may be stored and backed up differently. Check where each important item actually lives. Keep the account access and any encryption recovery information somewhere secure and accessible if the computer stops working.

Windows and Mac options

Windows Backup can protect supported folders and settings using a Microsoft account and available OneDrive storage. It is not a promise that every application or business dataset will be restored. On a Mac, Time Machine can create backups to an appropriate external storage device; use its setup instructions and check that backups are completing.

Choose storage according to the amount of data and your recovery needs. A drive used for backups should not contain the only copy of other important files, and a storage device may need preparation that erases existing contents.

Sync is not a complete recovery plan

Sync tools make files available on multiple devices. They can also synchronise deletions and unwanted changes. Review retention, version history and restore options rather than assuming a cloud icon means every loss scenario is covered. For a business, decide who owns the account and who can restore data if a staff member leaves.

Perform a small restore test

1. Create a harmless test document and include it in the backup.
2. Confirm the backup reports completion and note the date.
3. Restore that document to a different location and open it.
4. Record how to repeat the process without putting secrets in a public document.

Remote help can review backup configuration, identify missing coverage and walk you through a suitable test. Large restores, failed drives and organisation-wide disaster recovery may need a different scope.