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Go to Security tab and click on Advanced. "C:\windows\System32\DriverStore\FileRepository\usbstor. Go to folder C:WindowsSystem32DriverStore, right click on FileRepository folder and press Properties. Known file sizes on Windows 10/8/7/XP are 76,288 bytes (66 of all occurrences) or 26,368 bytes. Now go to "C:\windows\inf" folder and check if these three files USBSTOR.SYS, usbstor.inf and usbstor.pnf are available.If it was renamed change the name as I wrote them or if they are not available copy them from "C:\windows\System32\DriverStore\FileRepository\usbstor.inf_x86_neutral_83027f5d5b2468d3"Īnd then go to "C:\WINDOWS\SYSTEM32\Drivers" and make sure you have USBSTOR.SYS and usbd.sys available if not copy them again from The file usbstor.sys is located in the C:WindowsSystem32drivers folder. If so, please right click on the values and select "Delete" to remove them. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\ ), on the right pane, and then check if “Upperfilters” and “Lowerfilters” value are present. Here is the steps I took to troubleshoot this issue and it got fixed. Issue: USB storage device is not working on my computer, be it a USB 2.0 or USB 3.0 it just doesn't install the driver for storage device and my USB mouse and webcam does work.Everytime I plug in a USB flash drive of USB 3.0 External hard drive it beeps and gives error message that the device driver could not be installed.
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