You've made changes to the Windows Registry so to make sure your changes are in affect in Windows, you'll need to properly restart your computer.
Step by Step Guide to Deleting the UpperFilters and LowerFilters Registry Values
By Tim Fisher, About.com Guide
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- Click on the Start Button
- Open Registry Editor
- Click on HKEY_LOCAL_MACHINE
- Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class
- Expand the Class Registry Key
- Determine and Click on the Correct Class GUID
- Locate the UpperFilters and LowerFilters Values
- Delete the UpperFilters Value
- Confirm Deletion of the UpperFilters Value
- Delete the LowerFilters Value
- Confirm Deletion of the LowerFilters Value
- Close Registry Editor
- Restart Your Computer
- Wait While Windows Restarts
- See if Deleting These Registry Values Solved the Problem
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- Restart Your Computer (Step 13 of 15)