Wireless Lan Card Driver Version 5.1.22.0 - 802.11n Usb

This driver is not a generic Microsoft driver; it is a third-party vendor-specific driver originally from Ralink, later maintained by MediaTek and often repackaged by adapter manufacturers (Panda Wireless, Alfa Network, EDUP, Cudy, etc.).


  • Uninstall old driver: Use pnputil /delete-driver or run the vendor uninstaller.

  • Even a legendary driver has its quirks.