DISM /Online /Cleanup-Image /RestoreHealth This restores the original Windows 11 system files. Some modern external SSDs also use the USB Mass Storage driver, but their performance or security features may require a manufacturer utility – not a separate driver for basic read/write.
sfc /scannow Then:
pnputil /delete-driver oem*.inf /uninstall (Use with caution – better to uninstall via Device Manager as in #1) No. The same USBSTOR.SYS driver handles all speeds. However, your USB host controller driver (e.g., Intel, AMD, or ASMedia) must be up to date – get those from your PC/motherboard manufacturer's support page or Windows Update. Where to Find the Driver if Reinstall Fails You do not need to download USBSTOR.SYS separately. If missing, run: usb mass storage device driver windows 11