Multitude of error messages keep coming up and restarting my PC

[Drona]

Hello People,

I recently built my gaming PC, and it was working fine until a couple of days ago, where i started to get blue screens, causing my PC to freeze then restart.

Some of the errors were, Kernel Security Check Failure, System Service Exception, 0xc000021a.

I have no idea what is causing this to happen.n

When the blue screens first came up, i formatted my SSD, and reinstalled windows 8.1, however these errors keep coming.

Any help would be greatly appreciated, thanks in advance!

 

[SGT Oddball]

Please read the instructions here: Blue Screen of Death (BSOD) Posting Instructions