Windows xp.....blue screen

[yaso1608]

hi....i am having a problem with my computer....yesterday i wanted to off my computer but it kept restarting....so i tried searching in google what is the cause....i found nothing....but i did find a guy asked to turn off the auto restart function in the properties of my computer...so i did....when i off it has this blue screen saying STOP : C000021a (Fatal System Error) and 0x00000000 (0x00000000 0x00000000)...please help me.....i don have a windows xp cd because it was installed in my cpu...and i can't press the f8 button to do the last known good configuration.

[prashanthpai]

some quick links :
http://support.microsoft.com/default.aspx?scid=kb;en-us;156669

http://healyourchurchwebsite.com/2008/03/14/how-i-fixed-my-stop-c000021a-fatal-system-error-with-knoppix/

http://support.microsoft.com/kb/317189

[NinjaRicer]

It seems you're going to need to repair your Windows installation or reinstall completely. Is your computer custom made? If not, I might be able to find you a Windows XP OEM disc. Just tell me the version of your XP, Home or Professional.

[yaso1608]

I have a windows xp home edition service pack 3

[Rusty]

yes unfortunately most Pc manyfacturers now charge extra for a boot cd with the Os on it. I had to special order mine from Dell. Anyway the guys can save a buck these days it appears. YASo try searchign ms suport there is a way to restore through command prompt. You may be able to boot in saafe mode with command prompt and restore through there. i recently used this and got lucky but i cannot find the exact reference number right now. I think i searched "restoring trough command prompt with xp" try that