On the “Edit” menu, click “Delete”, and then click “OK”.į. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\Į. Locate the “UpperFilters” value under the following key in the registry:
Click “Start”, type “regedit” (without quotation marks) in the “Search” bar and press Enter again.ī. For more information about how to back up and restore the registry, click the following article number to view the article inĪ. Then, you can restore the registry if a problem occurs. For added protection, back up the registry before you modify it. Therefore, make sure that you follow these stepsĬarefully.
However, serious problems might occur if you modify the registry incorrectly. Important:This section, method, or task contains steps that tell you how to modify the registry. Method 2: You may also delete the USB 'Upper Filter' & 'Lower Filter' Entry and check if that helps. The Advanced Boot Options screen lets you start Windows in advanced troubleshooting modes.ĭisabling driver signature enforcement has helped a lot of users in fixing the issue.ĭisabling driver signature enforcement : Allows drivers containing improper signatures to be installed.Īdvanced startup options (including safe mode) Method 1: From Advanced Boot Options disable driver signing checking.
