Situation:
A blue screen occurred seemingly randomly with error message of DPC_WATCHDOG_VIOLATION
Upon the computer restarting, audio would no longer be heard through headphones. The headphones are recognised, the dell audio dialog comes up , as well as the "you have plugged something into the headphone jack ". Sound still plays excellently through speakers.
I did attempt to use different headphones,
update drivers, check for viruses, run cccleaner and download the windows fixit for audio which interestingly enough cannot launch - citing error 0x80007057.