I filled out my system specs and am including the requested files as instructed (includes dump files). Since last week, I have gotten a few BSODs. All but one (0x1000008e KERNEL_MODE_EXCEPTION_NOT_HANDLED) were 0x000000c2 BAD_POOL_CALLER. Both types were apparently caused by Windows system files ntkrnlpa.exe and win32k.sys. There seems to be no correlation between them occurring and any particular software or action (have gotten them upon moving and renaming files, browsing the internet, and even while being absent from the PC). My drivers are all kept up to date; so are my windows updates. I hadn't installed any new hardware, drivers, or software for awhile (some time before the crashes began). I can't seem to relate it to anything else. I ran Memtest for 20 hours and there were no problems with my RAM at all. I have also run a few different hard drive testing utilities and they all showed both my drives to be completely fine. My hard drives also aren't in need of defragmenting. Additionally I have done thorough scans for viruses and malware with a couple different programs, but that came out to be clean as well. Also lately I have been getting some random slowdowns and even crashing with random programs (has happened with programs I use the most); I think this could be related. I'd like to know what could be causing the BSODs, how I could stop it, and if it might mean something fatal to some hardware or my data.