Error 0xc000021. Help!

[TheRishiku]

So I went outside for a smoke.. Came back and error 0xc000021a had shown up. I tried to restart same error.. A couple of days before this my disk usage was jumping up 100% usage and my computer would lock up I tried to reset it was stuck at 1% went to sleep woke up to my computer restarting it self over and over. Any solutions maybe it's my hardrive?

 

[Xergiiok]

This might help: http://www.bleepingcomputer.com/forums/t/504487/help-computer-wont-boot-error-0xc000021a/