Hi Rock,
Many thanks for your reply. Below are the answers for your questions,
Did you try last known good configuration?
A: Yes, I did. I even tried to use system restore back to the date before
I
activated the XP home. But unfortunately both didn't work.
Also from the advanced options menu where you choose safe mode also
choose
don't automatically restart on error.
A: I didn't choose. I will try tonight.
Where is it in the boot up process when it restarts?
A: C drive, some time boot up process takes very long, and hang up.
Why did you reinstall XP Home in the first place?
A: The computer got spareware, and virus, I could not remove them.
How did you reinstall?
A: Delete partition and format the harddrive, then do clean installation
What is the system configuration?
A: 600MHz CPU, 512M RAM, 40GB Harddrive.
That's all.
Hope get more help from you.
Michael