Late last month, Microsoft acknowledged that an update to the Windows 10 May 2020 (20H1/Version 2004) feature prevented OneDrive from syncing. The company is currently working on a fix that will fix the problem in the next cumulative update. Fortunately, Microsoft has introduced a temporary fix with built-in troubleshooting tools.
The troubleshooting program for Windows 10 can help identify any issues, which can also reset the OneDrive application. In settings, users can click Update and Security, and then “Troubleshooting.” Clicking on View History in the Troubleshooting section will help you troubleshoot this OneDrive problem and suggest you restart your device.
If the troubleshooter is not running, you can use the command prompt to modify the registry key. In the command prompt, enter the following command.
Reg add HKLM/System/CurrentControlSet/Services/Cldflt/instances/f/v DefaultInstance /t REG_SZ /d “CldFlt”
If you can’t run the command above, you can also make manual changes to the registry. Enter “Registry Editor” in Windows Search and select Registry Editor in the right pane. In the registry editor, navigate to the following pathHKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/CldFlt/Instances.
In the sidebar on the right, look for “Default Instance” and click on it to change its value from CldFlt to CldFlt Upper. After you make the above changes to the registry, restart your device.