1. Remove the Upperfilters and Lowerfilters values completely from the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
2. Restart your computer.
Nonsensuri si inutilitati, de la lume adunate şi iarăşi la lume date (Anton Pann)