failed to downgrade from windows 10 (21-03-16)

Basically my dad has been wondering how come he can’t play his games on windows 10 like solitaire and I was lazy to figure out so I tried changing it back to windows 7 which gave me a huge headache. The startup recovery failed and hangs there 

  
when i try to startup normally it just boots up into the startup recovery and boot windows normally again. I booted into safe mode and tried to load diagnostic and selective startup which both didn’t work

  
I tried also last known good configuration. Didn’t work either

Sounds like no luck? Ending up I got a solution well it doesn’t work for everything. I uninstalled my aviria antivirus on safe mode and I managed to boot into windows