OneDrive not syncing: How to protect files before fixing it

What to do when OneDrive stops syncing files?

Before resetting or unlinking your account, identify which files are in the cloud, which exist only on your computer, and which are showing errors. The OneDrive icon, web portal, available space, logged-in account, and file names or paths often reveal the cause.

Risks to review

• Confusing synchronization with an independent backup.
• Overwrite a recent version or lose changes that have not yet reached the cloud.
• Unlink or reset OneDrive without first copying failed files.
• Log in with a personal account when a business account applies.

Safe recommendations

1. Check the OneDrive icon and open the exact list of sync issues.
2. Compare a sample of critical files with OneDrive on the web and confirm their modification date.
3. Check available storage, logged in account, permissions, file names and paths that are too long.
4. Copy files with uncommitted local changes out of the synchronized folder.
5. Update OneDrive and Windows before unlinking or resetting the app.
6. After repairing, check an upload, download, and version history of a test file.

When to seek specialized help

• There are version conflicts or files that exist only on one computer.
• The error affects shared folders, SharePoint or multiple users.
• You need to recover a deleted, encrypted or overwritten version.