Before I begin, I'd like to give the basic information regarding my system. I'm using a laptop with Windows 7.
Aside from that, my problem recently reared it's head after I noticed that my internet is remarkably slow, as well as a few other sluggish behavioral problems my computer is having, so I decided to download Avast! Anti-virus. Shortly after my first scan, I became bombarded with "Malicious URL Blocked" alerts, which are as follows:
"MALICIOUS URL BLOCKED
avast! Network Shield has blocked a harmful site.
After this began, the computer started blue screening, and just tonight, Windows completely refused to start until I did a System Restore back to yesterday.
I'm not sure if this information is specific enough, but it's the best I'm able to supply at the moment, if any more information is required, please, help me help you help me.