USB Devices
If you cant delete registry keys, run as admin: C:\WINDOWS\SYSTEM32\regedt32.exe, and use the security menu. Then delete
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\USB\Vid_067b&Pid_2501 to get USB devices recognized again.
If you cant delete registry keys, run as admin: C:\WINDOWS\SYSTEM32\regedt32.exe, and use the security menu. Then delete
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\USB\Vid_067b&Pid_2501 to get USB devices recognized again.