A: No official compatibility, but many users run it successfully after installing .NET Framework 3.5 and running as Windows 8 compatibility mode.
Since version 6 is no longer supported, disable update checks to avoid connection errors: nitropdfprofessional64bit62110 upd
Ensure Nitro Pro is not running. Check the system tray (notification area) and task manager for any background NitroPDF.exe processes. A: No official compatibility, but many users run