AutoPatcherXP is the "one-stop-shop" I used to install all of the Hotfixes and underlying programs necessary to prepare for successful installation of SP2 from the Windows Update site itself.
AutoPatcher, as you know, is one of the resources found on the AutoStreamer website. The other resources are tailored towards other operating systems like 2000, NT4, Me, 98, etc. They even have some for Mac users that operate the new Microsoft versions for MacIntosh computers! My understanding of it is that AutoPatcherXP installs all of the items that make SP2 work at one time, unmollested by other regular software programs many of us use that inadvertently can cause problems.
This is what cured my ills:
I went to AutoStreamer as Bob directed and read enough to learn AutoPatcherXP was the specific program I needed to use for my problem with installation of SP2. I then downloaded AutoPatcherXP.
I went to Start>Control Panel>Add or Remove Programs. I identified and removed all Hotfixes associated with SP2 (they're labeled as such) and SP2 itself. I then ran a McAfee antivirus scan, an AVG antivirus scan, the free TrendMicro antivirus scan and Spybot Search and Destroy and Adaware SE Professional to try to ensure my system was as free of maliscious code as I could get it.
I rebooted my system and repeated the scans again, probably out of paranoia. Once I was convinced my system was clean I installed AutoPatcherXP and ran it. It analyzed my system and found 251 things it needed to install to get my system ready for SP2. I let it start the process and watched carefully. At one point it said it had not been able to install one of the programs, and instructed me to rerun AutoPatcherXP again after it had finished the first run. It did the same thing once more before it finished. After it completed it automatically rebooted my system. When it came back up I started it again as directed. This time it only selected the things it hadn't installed the first time. I was surprised that it said it needed to intall 93 things! I ran it again. It again got to a point where it said it could not install one of the programs and to rerun it upon completion. It finished and rebooted again. I reran it and it found only a few things that needed to be installed the third time. I started the installation process and it stopped in the middle and the "Display" screen popped up beside the AutoPatcherXP window. You know the one, it's the window that you reach via Start>Control Panel>Appearance and Themes>Display used to adjust your destop appearance. Another window popped up beside that one which said I needed to install Windows Media Player in order for whatever it was installing to work, and guided me to the Windows Media Player download site. I downloaded Windows Media Player 10 and it continued on its merry way! It finished that time without further incident, and it had not said I needed to rerun it again due to inability to install any of the components. It rebooted my system upon completion.
I reran all of the malware scans again out of paranoia, and the system was clean. I then went to Windows Update and it said I needed SP2 and two more Hotfixes. I allowed it to proceed and it installed them without any problems. It gave me the completion window that said installation had completed successfully and I needed to reboot my system for the changes to take effect. I was SCARED TO DEATH! That had been the point in all of my previous attempts when everything went haywire. I pressed the button to "reboot now" and went outside to smoke a cigarette!
When I returned, my computer was up and running with the Windows XP Security Center configuration screen up. I configured the security center to work with my McAfee Internet Security Suite without any problems. When I tried my internet connections and email it worked fine! I started putting my computer throught its paces, trying everything to see if it worked properly. So far it has been running perfectly!!! Better than ever before! I am SO HAPPY!!!!
I hope this explanation of what I did helps you. I can't say that it will fix your system, but if I were you I'd certainly try it! All I can say for sure is it worked for me. I hope from the bottom of my heart (and the rest of my heart for that matter!) that AutoPatcherXP works for you as well. Please let us all know how it goes for you.
Eldon