c000021a (fatal error) 0xc0000005 (0x00000000 0x00000000)

i was working on dell latitude p3 laptop after connecting a mp3 player my computer shutdown and restarted. few moment later i saw BLUE screen appears with the stop error that reads:
> STOP: c000021a [Fatal System Error] the window logon process system terminated unexpectedly with a status of
>0xc0000005 (0x00000000 0x00000000).the system has been shutdown
i am asking for help to solve this problem. please contact as soon as you get a answer.