"Existing software was not fully installed. To fix this problem, click Details."
And i click Details.
Microsoft Windows XP has detected software that is not completely installed on your computer. Windows XP Setup cannot continue until you finish installing this software.
To finish the installation process for this software
1. Quit Windows XP Setup.
2. Log off of your computer, and then log back on again.
3. After you log on, a program will start immediately; allow it to complete.
4. Restart Windows XP Setup.
In spite of that, i still couldnt get it right. So any thought which might possibly fix this problem? Desperate in needing help now:(