A Microsoft file hosting and synchronization service.
The blue circular arrows mean OneDrive is still syncing or is stuck processing changes. Since downloads from colleagues still work but local changes are not uploading, the most useful fixes are to refresh the local OneDrive sign-in and sync state.
Try these steps in order:
- Make sure OneDrive is running and signed in
- In Windows, check the OneDrive cloud icon in the notification area.
- If it is missing, open Start and launch OneDrive.
- Check whether the account can still upload
- An Upload blocked issue can happen when a Microsoft 365 app is signed in with an account that does not have permission to upload files to OneDrive.
- Re-add OneDrive as a service if needed.
- Clear old OneDrive sign-in settings on Windows
- Press Windows key + R.
- Enter:
%localappdata%\Microsoft\OneDrive\settings - Select OK.
- Delete PreSignInSettingsConfig.json.
- Then start OneDrive again.
- Resolve file conflicts if they exist
- If OneDrive detects a conflict between the local and server copy, upload may not complete normally.
- For Office files, open the file in the Office app and use the conflict resolution options:
- Save a Copy
- Discard
- For non-Office files, OneDrive may keep both versions and append the device name to one file.
- Update OneDrive to the latest version
- Install the latest Windows updates.
- Download and install the latest OneDrive version.
- Uninstall and reinstall OneDrive if the problem continues
- This is a supported fix when clearing credentials does not help.
- Files are not lost by uninstalling OneDrive; they remain available in OneDrive online.
- Reduce local sync load if the folder is very large
- Use Files On-Demand or choose only the folders that need to sync to the computer.
- This can help when the local disk has duplicate copies and is becoming difficult to manage.
- If this is a work or school account and sync still fails
- Contact the organization’s IT helpdesk or admin.
- Fix problems uploading files on the OneDrive website | Microsoft Support
- Resolve sync issues in OneDrive for work or school
- [Error messages](https://support.microsoft.com/onedrive/what-do-the-onedrive-error-codes-mean)
- [File Explorer/Finder](https://support.microsoft.com/onedrive/what-do-the-onedrive-icons-mean)
- How to fix "A newer version of OneDrive is installed" | Microsoft Support
- Fix SharePoint Online sync problems | Microsoft Support
- [Work/school accounts](https://support.microsoft.com/onedrive/fix-onedrive-sync-problems)