This happened when I was casually downloading a manga file when my CPU usage suddenly spiked to 100%. Everything started operating at a snail's pace and I eventually had to cut the power on my laptop. What happened next is a blue screen that stops me from booting up Windows normally under normal circumstances. (sometimes, if I operate on Safe Mode and uninstall a program or do a restart after modifying something on my MSConfig, I might be able to use normal windows. But the blue screen sometimes returns regardless in the middle of my work.) I'm pretty sure it's not a virus. Possibly, something in my OS Driver might have have become corrupted. It happened once before with the driver for my monitor, but nothing nearly as bad, and I was able to fix that with System Restore. Unfortunately, I have no restore point ready this time so I'm stuck. Here are all the technical info that I copied down. The blue screen prevents windows from booting up normally, except under Safe Mode. Some exceptions apply that I've noted above. Its recommendation was that I uninstall whatever hardware I might have recently installed but I do not think it is a hardware problem. (like I said, it happened while I was downloading a manga chapter, definitely virus/spyware free.) Driver_IRQL_NOT_LESS_OR_EQUAL STOP:0x000000D1(0xF73F1244,0x00000002,0x00000000,0xF73C648D) *** NDIS.sys - Address F73F1244base at F73C6000,DateStamp41107ec3 *** NDIS.sys - Address F73C649Dbase at F73C6000,DateStamp411073c3 Any help will be greatly appreciated. Thank you.