Uh yeah, odd lag spikes in Windows 7, explorer crashing whenever I try to do anything right-click related, HDD is fine, I know that much. My USB HDD doesn't like to copy files without it pausing for 10-20 seconds at a time before it thinks about it. I don't know what happened, why this is happening and why explorer keeps resetting itself. It'll show the "not responding" text, and either crash or continue as normal, something is not right here, it was fine yesterday. Ran MSE and MalwareBytes, the latter detected PUP, which I removed, rebooted, nothing. Then as I was on, BSOD, a log of which is below Any program I use, will seem to "freeze" for a time and then resume normally, then pause for the same time, rinse and repeat. 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:FFFFF6FC4000AC18 BCP2:FFFFFFFFC0000185 BCP3:00000001535D2820 BCP4:FFFFF88001583000 OS Version:6_1_7601 Service Pack:1_0 Product:256_1 Files that help describe the problem: C:\Windows\Minidump\101914-11653-01.dmp C:\Users\PC\AppData\Local\Temp\WER-23368-0.sysdata.xml Read our privacy statement online: http://go.microsoft.com/fwlink/?linkid=104288&clcid=0x0409 If the online privacy statement is not available, please read our privacy statement offline: C:\Windows\system32\en-US\erofflps.txt I know it's possible to reinstall windows without formatting the data, as I think explorer exe is jacked up. OS: Windows 7 Pro Can't install updates as it hangs at 0%, refusing to install, tried restarting the update service, nothing. Gonna try to see if I can't get a USB flash drive to backup the vital data I want to keep. Failing that, would a chkdsk /r do any good?