MacBook Pro will only work in guest account
So after a liquid spill, a keyboard replacement, logic board cleaning, and main disk repair via Disk utility, I can still only use my laptop with the guest account, otherwise it shuts off at the Apple logo after showing a status bar that fills up a bit. It also shuts off before I can run AHT. When I manged to get into disk utility, my usual disk "Macintosh HD" was greyed out so I couldn't verify it.
Should I give up and get the board repaired or is there a chance this is a hard drive issue?