Onedrive installed on computer but not visible in file explorer

If OneDrive.exe is installed on your Windows 10 computer but cannot be started, you may check whether the following two settings have been configured correctly.

1. Check Registry.
   a)  Press (Windows key) + R to open the Run box.
   b)  Type regedit and click OK.
   c)  Navigate to HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\OneDrive. Make sure DisableFileSyncNGSC is set to “0”. (It is also OK if the registry doesn’t exist).
2. Check Group Policy settings.
   a)  Press (Windows key) + R to open the Run box.
   b)  Type gpedit.msc and click OK.
   c)  In the Local Group Policy Editor, in the folder list under Local Computer Policy, navigate to Local Computer Policy > Computer Configuration > Administrative Templates > Windows Components > OneDrive > Prevent the usage of OneDrive for file storage. Make sure it is set to “Not configured” or “Disabled”.