Sacred Haven of Debauchery

My games kept crashing... I already wrote about Heroes 5. And yesterday, Diablo crashed when we tried to play online. That was the last straw, and I decided to clean the computer from dust. Then I regretted it because the computer stopped turning on. Well, it would load up to the Windows logo (with the blue squares), then it would reset, and it kept doing that. So, we decided to reinstall Windows over the old one. First, on one hard drive, then on the second, but it didn't help. Once, the main hard drive (where Windows was installed) did load, we did something there and turned it off (I don't remember what, maybe we needed to install drivers). And again, it stopped turning on. It seemed like the problem was with the hard drives because neither of them would turn on separately (especially the second one, which didn't even get to the Windows loading screen). There was also a theory that the cables connecting to the hard drives had failed, or maybe the computer was just too old. We decided to copy everything from the second hard drive to the first. For this, we launched Safe Mode. I cleaned the first drive, deleted games and other unnecessary stuff, and then started copying everything I needed from the second. I was at it until about 4 am, and I had three folders left (2, 5, and 27 GB). So, I put all three folders in the copy queue and went to sleep. (Before that, I had also copied the most important files from the first drive to the second, just in case the first one failed, so at least everything would be on the second). When I woke up, all that stuff had been copied. Then I spent a couple more hours messing around with the computer and finally decided to use another computer (the one in the living room). In the end, one hard drive (the second one) was disconnected from the "new computer," and I installed my main drive (where I had been copying music and all the other necessary files all night) in its place. Now I'm using the other computer, whose hard drive and Windows are the primary ones, and mine is now the secondary drive. On the one hand, this is a plus because this computer is more powerful, but at the same time, it's glitchy, and I don't even know how Windows is installed here, plus there are viruses (although now I'm deleting them with Kaspersky, and even my local drive has started opening normally, not through Internet Explorer). Now, I have a long rehabilitation process ahead of me. I need to reinstall everything on a new hard drive, which is a pain. Although, maybe I can use this one, I don't even know. P.S. Oh yeah, I also spent some time setting up the network with the internet and my brother's computer, but that's done too