Manually fix corrupted registry entries
NoteTo use this method, you must be logged on to Windows as an administrator. If you need help verifying that you are an administrator, go to
http://support.microsoft.com/gp/admin
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756
How to back up and restore the registry in Windows
This problem may be caused by two Windows registry entries that have become corrupted. To use Registry Editor to delete the corrupted Registry entries, follow these steps:1.Press the Windows logo key+R to open the Run dialog box.
2.Type regedit in the Run dialog box, then press Enter. If you are prompted for an administrator password or for a confirmation, type the password, or click Allow
3.In the navigation pane, locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
4.In the right pane, click UpperFilters.
Note You may also see an UpperFilters.bak registry entry. You do not have to remove that entry. Click UpperFilters only. If you do not see the UpperFilters registry entry, you still might have to remove the LowerFilters registry entry. To do this, go to step 7.
5.On the Edit menu, click Delete.
6.When you are prompted to confirm the deletion, click Yes.
7.In the right pane, click LowerFilters.
Note If you do not see the LowerFilters registry entry, go to Method 4.
8.On the Edit menu, click Delete.
9.When you are prompted to confirm the deletion, click Yes.
10.Exit Registry Editor.
11.Restart the computer.