Hi i was browsing the web recently and saw that a site i visit called Newgrounds needed a java update i started to install the java when things started going wrong, my computer started freaking out and something kept popping up saying " Make your PC super fast today!" i used control panel and stopped the java update and started to hunt down the programs that were installed, after deleteing what i thought was all the programs my computer began to crash after around 15-20 minutes i thought this was a bit odd, can a virus cause you computer to crash and blue screen? what do i do ?