Something Must Be Wrong With my PC

SentinelFPS

Honorable
Dec 10, 2013
163
0
10,690
My Build:
MSI z77a g-43
8gb Corsair Ram
500w PSU
i5 3570k
1TB HDD
CM HAF 922
Windows 8.1

I build my pc sometime around Christmas of 2013. It didn't boot for a while because I got shit RAM and got different ones a few days later. It started, worked fine like it's supposed to... and so on. About a few days after that, I started to randomly crash. Especially when re-downloading my steam games. Just a blue Windows 8 screen saying it's going to recover and restart. IDK why it crashes and for what reason. It crashes at LEAST 10 times a day. What could it be? I do not have a virus, I've already checked. My PC pro friend doesn't know it is either. He says maybe my Motherboard is damaged or something. Idk, Help anyone? Thanks.
 

SentinelFPS

Honorable
Dec 10, 2013
163
0
10,690
Not sure. I haven't messed with either. How should I check?