Well it seems that the problem is in the software, but without all the specifications I can't be sure.
Try using your computer without add-on graphics cards, just the IGP. And see if you can boot it up right.
If your computer works alright, with just the integrated graphics, clean up the system. First uninstall the upgraded drivers. Then clean your registry, scan for viruses, and create a restore point. Now reinstall the graphics card you want,
with the latest drivers.
I hope your computer works right. I know how time consuming these things problems can be.