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Fix OneDrive Error 0xc02500d6: Unable to Back Up Desktop Folder
Question details
The user is unable to back up a large Desktop folder to OneDrive due to error code 0xc02500d6, which states that synchronization will begin after files are closed.
- Product
- OneDrive
- Device & OS
- Windows
- Scenario
- Attempting to back up a Desktop folder containing nearly 2,000 files to OneDrive cloud storage.
- Observed behavior
- OneDrive displays error code 0xc02500d6 and fails to sync some files, falsely detecting that certain files are currently open and locked by the system.
Ensure that all active applications and files currently open from your Desktop are completely closed, as actively running files can block the OneDrive synchronization process.
Perform a Windows Clean Boot and Reset OneDrive
Use this method to stop background services that might be invisibly locking your files, then force OneDrive to perform a full synchronization.
Even when no applications appear to be open, hidden background services or third-party software (like antivirus programs) can lock your files. Performing a clean boot ensures that only essential Microsoft services are running.
Type 'msconfig' in your Windows search bar and open the System Configuration tool. Navigate to the 'Services' tab, check the 'Hide all Microsoft services' box, and then click 'Disable all'.
Click 'Apply' and then 'OK'. Restart your PC to apply the clean boot environment, ensuring no third-party apps are interfering with your Desktop files.
Press the Windows Key + R to open the Run dialog. Type '%localappdata%\Microsoft\OneDrive\onedrive.exe /reset' and press Enter to clear the OneDrive cache.
Open the OneDrive application from your Start menu, sign back in with your Microsoft account, and allow it to rescan and sync your Desktop folder.
Manually Move the Desktop Folder into the OneDrive Directory
If the automated PC folder backup feature continues to fail with error 0xc02500d6, manually moving the folder can bypass the background backup conflict.
Try WPS Office for Seamless Document Backup
If you frequently encounter complex OneDrive synchronization errors like 0xc02500d6, consider switching to WPS Office. It provides a lightweight, highly compatible office suite with integrated WPS Cloud storage, ensuring your important documents are safely backed up without frustrating sync conflicts.
- 1. Install WPS Office: Download and install the free WPS Office suite on your Windows PC.
- 2. Sign In for Cloud Access: Launch the application and sign in to activate your free integrated WPS Cloud storage space.
- 3. Enable Auto-Backup: Turn on Auto-Roaming in the settings to automatically save and sync your office documents to the cloud as you work.
Frequently Asked Questions
Why does OneDrive say files are in use when nothing is visibly open?
Background processes, antivirus software, indexing tools, or hidden system services can lock files. Even if you don't see an active window, the operating system registers the file as 'in use', which triggers synchronization errors like 0xc02500d6 in OneDrive.
Will resetting OneDrive delete my local Desktop files?
No, resetting the OneDrive client only restarts the synchronization engine and clears its operational cache. Your local files on your PC and the files already successfully backed up to the cloud will remain completely safe and untouched.
How can I check exactly which files are causing the 0xc02500d6 error?
Click the OneDrive cloud icon located in your Windows system tray (bottom-right of the taskbar), then click on 'View sync problems'. It will display a list of the specific files that are failing to upload along with their individual error statuses.
