Does Avast stop games playing??

I play a game called Cities Skyline and yesterday I downloaded over 2500 assets (extra buildings, roads, etc) and tried to play the game afterwards. It took 15mins to load instead of 3, and when I got to the opening screen where you see your city, it crashed! Now today I go and play today and it is showing as it needs to be installed in my Steam library!!?? It also shows that all the DLC’s I have bought are not installed!! I have that loading screen mod and it showed that all the memory was in the red so I know I need more RAM if I want to run this many assets. But why has the game apparently uninstalled?? I went onto the Steam page for this game and asked a question on there and one of the answers was about an anti virus that might think the game is a virus and stop it form loading etc? Does AV stop games from playing??

  • Which Avast…? (Free/Pro/IS/Premium)
  • Which version…?
  • OS…? (32/64 Bit…? - which SP/Build…?)
  • Other security related software installed…?
  • Which AV(s) did you use before Avast…?