How to fix blue screen of death error on windows 7 at startup?

[ninaa1515]

since my computer blue screaned i cannot run wiindoes it says error 8007042c and system failed to start if i try to troubleshoot

 

[the great randini]

i would try some advanced startup options, although without more info its hard to guess which one would fix your problem.
what have you changed recently.
have you installed any programs?
have you installed any hardware?
advanced windows startup How to:

 

[weaselman]

Its a windows firewall error, the service failed to start, so its a corrupt windows file. Just pop the windows disk in and do a repair.