Alfa has not released a driver package for Alfa AWUS036NHA (Atheros AR9271 chipset) beyond Windows 7.
However it has come to our attention that AWUS036NHA can be stable on Windows 8, 10, and 11 using this third party driver. This driver was made for a different brand product which uses the same AR9271 chipset. Note that after installing, the device will appear in Device Manager as "TP-LINK Wireless USB Adapter" instead of Atheros or Alfa. This is because TP-Link is associated with Microsoft as the Device Developer ID of this driver package.
We have tested the driver extensively and it appears to work with the Alfa AWUS036NHA well. However it should be considered a beta driver until further notice.
Military and First Responder 
DEC 2018 here, taking time to comment as this is the ONLY solution I tried after hours that actually works. Virus scan only showed 1 false positive.
This actually worked !
Win 10 user here…