Recently I decided to format my computer and reinstall XP.So everything was working fine until I tried to start Windows Update it gave me a " The website has encountered a problem and cannot display the page you are trying to view " error.
Turns out there's a really easy fix if you're on Windows XP sp2 just download:
http://download.windowsupdate.com/WindowsUpdate/redist/standalone/7.4.7600.226/WindowsUpdateAgent30-x86.exe
and install it.A reboot might be required.If you don't want to reboot you can try stopping the services you just updated yourself.
If you want to stop the services manually go to Run and type in net stop wuauserv then go to run again and type in net stop bits after you've done that go ahead and start up the services again net start wuauserv and net start bits.
Start your Windows Update again and it should be working fine.