Windows 10 BSOD on startup, can't even boot to safe mode

Have an issue with Windows 10 booting on an HP all in one desktop. The error code it's giving is 0xc000021a. I can't boot to safe mode, I've tried running sfc /scannow and it failed, tried resetting Windows from the automatic repair menu and that didn't work either. Tried disabling driver signature enforcement as well and that failed to work. I'm about at my wit's end, has anyone else had this issue or know of a way to fix it?

Thanks!

Submitted July 31, 2017 at 05:38AM by Gonzo7896200 http://ift.tt/2vk78Q4