Recently I have gotten a viris, and i've managed to get rid of it using System Restore. However, ever since I got it, none of my downloaded games have been working! Google stopped working for awhile too, (would freeze the computer when I tried to open it) but somehow, a friend of mine managed to fix it, without really knowing what she did. It's been a few days now and the games had not improved. Minecraft is frozen on the login page (the 'play' button is really light grey, and it is stuck on: Welcome guest! Please log in. Loading versions… However, there's no possible way to log in.) Then, there's another game called FeralHeart. It just crashes when I open it. Does anyone know how to fix this? How do I fix my computer?
Added (1). Edit: I have an Anti-Viris, (Avast! And Malware Bytes) and i've run a few scans after the System Restore. But they don't pick up anything.
Added (2). Oops! Virus, I mean.