Open the Registry Editor.
Navigate to: HKEY_CURRENT_USER\Software\Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}
In the right pane, right-click on System.IsPinnedToNameSpaceTree DWORD value and select Modify.
In the Value data field, type 0 and click OK
Next, navigate to the following location in Registry Editor: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace
In the left pane, right-click on {018D5C66-4533-4307-9B53-224DE2ED1FE6} and select Delete to remove