If Windows keeps reverting to an older driver, use the > "Browse my computer for drivers" > "Let me pick from a list" method to manually select the 5.1.22.0 version from your local files. Conclusion
Always keep a copy of this driver on a flash drive. If you ever reinstall Windows, you won't be able to go online to download the driver without it! 80211n usb wireless lan card driver version 51220 full
Remove the USB dongle from your computer. If Windows keeps reverting to an older driver,
Uncheck Driver Version Not Updating
Right-click your current wireless card in Device Manager and select Uninstall device . Check the box for "Delete the driver software for this device." 80211n usb wireless lan card driver version 51220 full