Fixes of BSODs

As of yesturday my PC has been getting loads of random BSOD, and error codes indicating there are corrupt system files. So the 1st error code I got was 0xc0000221 which was saying my OS couldn't be loaded due to the kernel being missing or containing errors and the file it was showing was...

Hello I currently use these Steelseries v2 headphones and it generally performs fine although I can barely hear myself so I sometimes get too loud and everyone in my house can at times easily hear me. I know that there's the playback volume thing in the Realtek audio manager but its rather quiet...