get rid of Dreaded blue screen of death

Question :
My Dell Inspiron 6000 laptop is showing, STOP: c000021a {Fatal System Error} The Windows Logon Process system process terminated unexpectedly with a status of 0xc0000005 (0x00000000 0x00000000). The system has been shut down.How do I go about by repairing this? And if so can I just start all over and reinstall Windows XP? But I do not have the disk and my warranty for this dell ended in November. PLEASE HELP!!!! Is there anyway to start from scratch without CD? And can I use any Windows CD??


Solution:
If you have 2 memory sticks in system, remove one and try it. If you have the green recovery disk that dell sends with their systems, place in drive and have it boot. Select "R" for repair drive. Then select "1" then enter your admin password. If you did not place one on system, just hit enter. Then at the C:\WinNT directory, type chkdsk /r then hit enter, and have chkdsk look for drive errors.

--------------------------------------------------------------------
Where to buy dell inspiron 6000 battery pack .
Rechargeable lithium ion inspiron 6000 battery for your notebook pc . Wholesale price , brand new . 9Cell 11.1V 6600mAh dell inspiron 6000 notebook battery .

Cheap Dell Inspiron 6000 battery in usa http://www.my-batteries.com/laptop-batteries/dell-inspiron-6000.htm
Dell 6000 battery in uk http://www.shopbatteries.co.uk/laptop-batteries/dell-310-6321.htm
Dell inspiron 6000 batteries in canada http://www.canada-battery.org/laptop-batteries/dell-inspiron-6000.htm