Hello, Today I got a computer to work on from somebody; they wanted me to just clear up space, make it run more smoothly, etc. and I've encountered a Bluescreen Error. Problem Signature: Problem Event Name: BlueScreen OS Version: 6.1.7601.2.1.0.256.48 Locale ID: 1033 Additional Information about the problem: BCCode: 7a BCP1: C0540668 BCP2: C0000185 BCP3: 4AC968C0 BCP4: A80CD00C OS Version: 6_1_7601 Service Pack 1_0 Product 256_1 It would only happen in a few instances and it was because of a few things: Running a virus scanner (Avast!) and then I tried using a different one (Windows Defender) and it still persisted. After about 10 minutes of either, It would instantly shut down the computer. It only gave me that error when I rebooted into safe mode, not in normal startup. And then I noticed by using Windows Disk Defragmenter, it had a 1% fragmented percentage when was analyzed, attempted to defrag and on the 7th or so cycle, it shut down. I've attatched a zip file of two minidumps and my Misinfo32 Any help would be appreciated, thanks.