I found this forum looking for help with my slow system (XP Pro 2002, SP3).
I went through the "slow computer" troubleshooting checklist that is posted on BC.
I also checked some preferences by going to: Start - Control Panel - Administration - Services.
Doing this I used the list on the following page (german site):
Performance is better now, but I could not defragment my computer (last step of the BC list).
Thereīs no error message, it just doesnīt start (tried to do it in safe mode, still wonīt work).
So I tried to defragment with Diskeeper and Perfect Disk, but installation doesnīt work for both of them.
Instead an error message appears, saying that Windows Installer Service could not be accessed.
Tried to fix this by following these steps:
Both methods presented on that page did not work out. When trying to reinstall Windows Installer, my system tells me thereīs no need to, since Iīm already using SP3 which includes the Installer.
I also could have screwed sth up by using Autostarts by Sysinternals when I was going through the troubleshooting checklist on BC.
I Did make a backup before I started, but when I wanted to use system restore, the backup was gone.
Looking through the system restore preferences, I found out that the system restore was disabled (which it wasnīt when I did the backup).
Thanks in advance to anyone trying to help.