So I have windows 8.1 and has been running perfectly fine for the longest time. I went to install my graphics card and after that my computer screen froze in mid use. So I turned the computer off took out the graphics card and when I started it back up the screen popped up saying automatic repair and I went and reset the computer back to last restore point. Once that was done the computer worked but was super slow and now when the screen savor comes on the computer monitor completely stops working and freezes. I don't know if it is a hardware or a software problem and I would rather not restore the hard drive because I have everything on there and haven't had a chance to back it up. Has anyone else had this problem and or know how to fix this?