Blue Screen Error On Startup

Recently, my computer would boot up and there would be double blue lines flickering on the screen. Sometimes, there would be a box of flashing lines that followed the cursor. Eventually, my computer would stop booting up, and I would get the blue screen with the following information: Page fault in nonpaged area
Stop: 0x00000050 (0x9A4878F4, 0x00000000, 0x8052B6CC, 0x00000000)From what I have read, this could be a software or hardware problem. I downloaded Memtest and ran that many times over long periods, but it did not find errors with my RAM (or at least what it could test). Reading that it could be something in the registry that is no longer valid or corrupted, I downloaded CCleaner, ran it, and fixed the errors. Still no resolution to the problem. I have scanned for viruses and malware using Symantic Antivirus, Malwarebytes Anti-Malware, and SUPER Antispyware, but it found nothing out of the ordinary. I am not sure if my registry is corrupted or perhaps the RAM on my video card is at fault, but the laptop starts up fine in Safe Mode and works well (making me think it is not the video/graphics card). I would like to know what I could do to fix my problem short of wiping out my system and reinstalling the operating system.