Caprice

what was happening only once in a while seems to be happening every time I turn my computer back on. I get the blue screen after I sign in. I've done a clean sweep - getting rid of cookies, history cleaning and temporary internet files - was working when I was doing that. Now if I turn my computer off - I'm lucky when I can get it to stay on without getting the blue screen. I tried to restore to an earlier date and so far 3 different dates didn't work - registry errors. I didn't do screen shots at the time - now if it happens I would do that so that I can keep record of it. Operating system:Windows 7 Professional (64 bit) Service Pack 1 System root: C:Windows Available physical memory: 3835 MB CPU: AMD Turion II P560 Dual-Core Processor Drive Info: C: 283.97 GB D: 13.83 GB Internet Explorer: 11.0