>>>>>>>>>>>OK this is complete error mssg.
"Stop: c000021a {Fatal System Error}
The Session manager initialization system process
terminated unexpectedly with a status of
0xc000026c (0x00000000 0x00000000).
The system has been shut down."
>>>>>>>>>>I found this thread
Windows XP: XP startup-Fatal system error-session manager initialization
by Strangette - 11/10/04 4:30 PM
>>>>>>>>>>>this is one post I feel is relavant.
"When the OS is reloaded from the original CD (a 40 minute process that looks exactly like a virgin install, but actually just overwrites the Windoze system files without blowing off the registry or any programs or data) TURN OFF Automatic Updates!!!! You may go to the Windoze Updates site manually and let it search for updates, but use the "Custom Install" not the "Express Install." This will allow you select the specific patches to be installed. When I started working on this issue earlier tonight and determined what was happening, I began installing the updates one at a time to find the one that caused the failure. I got halfway through the list of 16 and then got lazy. I did 4 at once and everything was fine. Then I did the last 4 on the list and bang, I'm dead again.
DO NOT INSTALL UPDATE NUMBERS 890859, 891781, 893066, or 893086. It is one of these that killed me. I do not yet know which one. Stay tuned and maybe I'll have some time on Sunday (won't have any time tomorrow, sorry) or one of you can take over the detective work."
>>>>>>>>>He later determines that #890859 is the culprit
"PROBLEM DIAGNOSED!!!
by Dick White - 4/16/05 9:15 PM
In reply to: XP startup-Fatal system error-session manager initialization by Strangette
Hotfix number 890859 is the culprit. Another tech in Microsoft's own newsgroup has documented it as well. But I can't find any evidence that Microsoft itself has acknowledged it. The easier solution than my method of reinstalling is outlined here.
http://windowsxp.mvps.org/spuninst.htmSo put out the word - turn off Automatic Updates, install updates manually and do not install # 890859. You may need to check the "hide this update" box so it doesn't get included again in future update cycles."----------
>>>>>>>>But I tried this and could not find that file, (this post is almost 3 years old ) I found a procedure to identify and remove hotfix's, but again that one was not listed, so it may be another one?
unless anyone has a better solution, I'll do the repair and manually install updates, and see if I can isolate the problem update
I'll advise if I figure it out