Computer crashes when gaming

A couple of days ago I did something really stupid: I tried to download a game for free by following a tutorial which required me to install a Babylon toolbar from an ad. It didn't work, so I uninstalled all the babylon stuff and scanned my computer with Avira and Ad-aware, they came up with some detections and a hidden object and removed them.

After that, I bought the game instead of downloading. However, my computer now randomly freezes when playing and seems slightly slower than before. As long as I'm not gaming, my computer functions normally, but starting the game makes my computer freeze and BSOD every 2 out of 3 times. Also my computer doesn't seem to make any minidumps, even after enabling it via those settings and trying tons of other ways.

Can anyone help me with this? I'm not really good with advanced computer stuff. I attached the Seven Forum folder to this post, hope it helps.

Do you still need assistance with this topic?