Method 1
Download and run UL_Filters from hisaan.com
Method 2
Start >> Run >> Regedit
HKEY_LOCAL_MACHINE >> SYSTEM >> CurrentControlSet >> Control >> Class >> {4D36E965-E325-11CE-BFC1-08002BE10318}
On the right hand side look for Upper Filters & Lower Filters >> Delete both the upper and lower filtesr >> Restart the computer.
Follow the same steps with Controlset001, Controlset002, Controlset003