Mirroring+the+iPad

[|Stu Hasic]  has suggested this link. Try install this - @https://support.microsoft.com/en-us/kb/2999226 Get the one linked beside - "All supported x64-based versions of Windows 7"

install the Microsoft update then update air server using the link above.

Please be aware that if you ever F12 Rebuild your AirServer PC, you'll need to reinstall this update.