Problem: Windows show error message as below when try to move a personal folder into SkyDrive, OneDrive or in a similar location.
Can’t move the folder because there is a folder in the same location that can’t be redirected. Access is denied.
Solution: Modify User Shell Folders Registry Key
Step 1: Go to Registry Editor.
Step 2: Navigate to the following path: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
For Windows 10 Pro (version 1909 OS Build 18363.720): HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
Step 3: Locate personal folder at right panel that is displaying the error and double-click on it.
Step 4: Replace the current value data with the corresponding Default Value in below list:
Desktop - %USERPROFILE%\Desktop
Favorites - %USERPROFILE%\Favorites
Music - %USERPROFILE%\Music
Pictures - %USERPROFILE%\Pictures
Videos - %USERPROFILE%\Videos
Documents - %USERPROFILE%\Documents
Downloads - %USERPROFILE%\Downloads
Corresponding registry key for the Downloads folder is {374DE290-123F-4565-9164-39C4925E467B}
Step 5: Click Ok to save the changes, close Registry Editor and restart computer.
Reference
Microsoft Support: Operation to change a personal folder location fails in Windows
Microsoft Community: Windows Explorer “This PC” Documents & Pictures uanble to change map to OneDrive