Will it allow you to boot in [b]Safe Mode[/b] without Networking?
If so allow it to start this way and then reboot the system it should then restart normally. But if you're intention was to reload the system just uninstalling SP2 will not cure any problems that XP had it's far more likely to make them worse. What you need to do here is to wipe the HDD and then perform a Clean Install from the Windows XP CD and don't chose the [b]Quick Format[/b] Option. While it's much slower allow the HDD to be formated normally but it's really important to zero it before you start as the Format option only writes to every third Sector so if there as an infection it can return.
If you haven't backed up all your data remove the HDD fit it to a USB Case and save your data to another computer you may need to save the encryption key if the data is encrypted so follow the directions here
http://tinyurl.com/orpmf
and you may need to Take Ownership of the Files so follow these directions
http://tinyurl.com/3aw7
Once you have the data saved you can use a utility to wipe the drive these are normally available from HDD makers Web Sites. If you don't already have a copy there is Boot & Nuke available from here
http://tinyurl.com/4rfur
Col
