My (custom built) computer, which I bought from a friend, has had issues with crashing during video games for the last couple weeks and has always randomly had "display driver stopped responding and has recovered" errors. I ran a Who Crashed analysis and it stated that all the crashes were due to nvidia something-or-other, so I updated the driver last night. It seemed to be fixed for awhile but eventually crashed again. I thought it might be due to overheating so I took the side panel off and cleaned all vents and fans (which were very dirty). I noticed that one of the hard drives were not plugged in, I have over 24k photos and a ton of videos so I thought it may help performance with the extra hard drive... Evidently this was a mistake because now my computer will not boot up... It gets hung up at the Verifying DMI Pool Data and I have no idea how to fix it. I unplugged the hard drive, thinking that was the problem, and restarted the computer but it still hangs up... I've checked YouTube and googled the issue but most of what I read is over my head, I'm not very tech savvy. I'd really appreciate some help with at least getting Windows to boot up! Please use layman's terms and step-by-step instructions ☺ Thanks!