I have had some issues with my laptop lately. I got a virus a couple of months ago, and it caused me to lose a lot of files and programs that were on my computer, as well in my start menu. I was able to isolate the virus and repair everything, but still dont have all the programs I once had. Also, every few days my screen will turn blue completely out of the blue (no pun intended) and I will get an error msg, which forces me to shut down by pressing and holding power button.

I do virus and malware check pretty much daily and all that is coming up fine now. However, I wanted to find out 1.) what I need to do to find out what is causing this blue screen error, and how I can fix it. Also, I want to find out 2.) if there is a way to retrieve those files and/or programs that I lost from the virus. Finally, I wanted recommendation on a good program I can download for free that can help pinpoint future issues like this and/or help me determine what I could do to improve the efficiency of the computer.