Try clearing the Upper/Lower Filters in your registry:
[Start] [Run] [Regedit] hit OK
Clicking the + sign navigate to the following registry key;
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class
Key Name: {4D36E965-E325-11CE-BFC1-08002BE10318}
Value Data: [Delete All Value Data from UpperFilters and LowerFilters]
Note: Do not delete the Key or the Multi-String Values. Delete only the data values.
Exit Registry and Reboot
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