BSOD started randomly now consistent.

Hello, I got my first BSOD on the 5th of this month. I just started up my PC, it gave me the BSOD. I restarted and it didn't happen again and everything was fine, until today. I went to work, got home and noticed my computer was loading things on my browser very slowly. I did a restart and got a BSOD, I ran the repair recommended by Windows and it didn't do anything helpful. After it restarted from there I didn't get the BSOD but my internet speed seemed to be running very oddly. I was on a Skype call and it was just fine, however loading websites took way too long and when I tried to download files it was really slow (3.1MB files said would take hours). Anyway, after a few more restarts I finally started to get the BSOD after I was loaded into my profile for about a minute. I am currently booted into safe mode with no problems so far. I ran bluescreenview and it said ntoskrnl.exe was the driver causing the problems but I read that that is a default driver. However, the blue screens I received after loading into my profile came up with HIDCLASS.SYS as the error. I saw that it could be caused by USB or bluetooth driver.

I just find this whole thing odd because I had one BSOD on startup on the 5th then nothing all the way until today and now the new BSODs that are coming up after I load into my profile. Add the slow browser/internet and I have no idea what's going on.

Sorry for the novel, I just wanted to be as descriptive as possible. I was planning on just re-installing Windows but I thought I'd throw this up here in case there was an easier fix you folks found. Thank you.

First off, thank you for the reply and the information. My only concern about your post is that if it is necessary to use ~10 different anti-virus/anti-maleware programs to scan. I understand that different programs can pick up some things others can't but ~10 seems like a little bit of overkill. Anyway, if it's really recommended I use all of them then I will. Thanks again for the reply.

Hello, just an update. TDSSKiller came up clean, CrystalDisk said my drive was in good condition. Ran Memtest for 21 passes, no errors. Still runs fine in safe mode, tried a to boot it up in normal mode this morning just to see if anything changed and it froze once I logged in. At this point I think I'm going to get a new HDD (my current one is three years old) and just reformat. I don't really know what else could be causing the problem unless something in my explanation or this update caught anyone's attention. Thanks again for the replays koolkat, I really do appreciate it