Using Alfa AWUS036H on Windows 10
But if you already own an AWUS036H and find yourself wanting to use it on Windows 10, here is a quick way how to do it.
The last driver made for this item was December of 2009 for Windows 7. The installer package for Windows 7 does not work on Windows 8 or 10, it just says "incompatible operating system" when you try and run it. So you need to run it in Windows 7 compatibility mode.
Step 1: Download Win7 driver (http://www.rokland.com/mask/drivers/alfa/awus036h_windows_7.zip)
Step 2: Open the downloaded zip file and extract the contents to a place on your computer you can find.
Step 3: Navigate to where you extracted the contents. Right-click the Setup.exe program and select Properties. Click the Compatibility tab and under Compatibility mode choose "Windows 7" and make sure the "Run this program in compatibility mode" is checked. Then click Apply and exit the Properties window. This should bypass the compatibility error.
Step 4: Run the Setup.exe program in full and restart the PC when done.Connect your AWUS036H to the PC and use as normal.