I have a 866 with 512 ram and A011 bios.  I was replacing the operating system from ME to XP pro.  I thought it was the old 20 gig hard drive giving me problems.  We installed XP pro on the 20 gig and downloaded the updates and rebooted, it couldn't find the hard drive.  I thought the old hard drive was the problem and put in a new 160 gig.  Now I'm  getting errors and we tried multiple time to install.  Here is the error message below. 

 

Stop c000021a (fatal system error)

the session manager initilization system process terminated unexpectily with a status of 0xc00026c (0x000000 0x00000

the system has been shut down.

 

Thanks for the help.

Al