Had the same problem, F14 was not flyable anymore.:noexpression:
I went trough this steps :
1. delete F14 module (also manual erase of files in "_download" and "mods" folder)
2. added exceptions to Bitdefender 2020 for DCS and DCS updater (example bellow)
3. REBOOT <--- this one is also crucial!
4. redownload F14 module (setup should not fail now)
Exceptions:
Hope that helps!
ryak84