The backup file is on the Desktop and named backup.reg. Right click “Computer” (the root node) in the left pane, click “Export” under the “File” menu, choose “All” under “Export range”, and select “Desktop” in the “Save” Note: If UAC (User Account Control) pops up, please accept it.Ģ. Click “Start”, type “regedit” (without quotation marks) in the “Search” bar and press Enter. How to back up and restore the registry in Windowsġ. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Then, you can restore the registry if a problem occurs. Protection, back up the registry before you modify it. Therefore, make sure that you follow these steps carefully.
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. You may also delete the USB "Upper Filter" & "Lower Filter" Entry and check if that helps.īefore we go any further, please first backup the Registry. You can access the menu by turning on your computerĪnd pressing the F8 key before Windows starts.ĭisabling driver signature enforcement has helped a lot of users in fixing the issue. The Advanced Boot Options screen lets you start Windows in advanced troubleshooting modes. In device manager and again this tells me that the driver is up-to-date for each USB port.Īdvanced Boot Options and disable driver signing checking. I have also tried to 'Update driver software' I have uninstalled each USB port and scanned for hardware changes which has no positive affect. I have been into Device Manager and notice that each USB icon has a yellow exclamation mark icon next to it. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious The error code is quoted as follows "Windows cannot verify the digital signature for the drivers required for this device. Since installing a number of windows updates none of my USB ports will now recognize any hardware that I have recently purchased a new laptop with Windows 7 and had no initial problems connecting USB devices (mouse, hard drive, camera etc.) to the ports.
Original Title: Error Code 52 - USB ports not recognizing connected USB devices
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