To verify that you are signed in as an administrator, bring up the Control Panel, select User Accounts, and then choose Manage User Accounts.įollow the steps in this section carefully. Note: To use this method, you must be logged on to Windows as an administrator. Note If you do not see the LowerFilters registry entry, go to the next method. When you are prompted to confirm the deletion, select Yes. If you do not see the UpperFilters registry entry, you still might have to remove the LowerFilters registry entry. Note You may also see an UpperFilters.bak registry entry. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\ In the navigation pane, locate and then select the following registry subkey: If you are prompted for an administrator password or for a confirmation, type the password, or select Allow Type regedit in the Run dialog box, then press Enter. Press the Windows logo key + R to open the Run dialog box. To use Registry Editor to delete the corrupted Registry entries, follow these steps: This problem may be caused by two Windows registry entries that have become corrupted.
