Guess you did not notice a recurring theme of "users not providing enough information in order for anyone to properly assist them troubleshoot their issue"? I am guessing that because you repeated the offense. ;-)
Windows XP ______ Edition with Service Pack _, __-bit?
(Fill in the blanks - for example: Windows XP Home Edition with Service Pack
What Antivirus Application do you have installed? Is it up-to-date?
Did you ever have a McAfee or Norton product installed - at any point?
Please be very specific with the *name* and *version* of the current antivirus application.
Assuming you have Windows XP 32-bit with Service Pack 2 at least... Go through these steps *exactly* - skipping none - no matter if you *know* you have done something or not.
Reboot and logon as an administrative user.
Download, install, run, update and perform a full scan with the following
Download the latest version of the Windows Update agent from here (x86): http://go.microsoft.com/fwlink/?LinkID=91237
... and save it to the root of your C:\ drive. After saving it to the root
of the C:\ drive, do the following:
Close all Internet Explorer windows and other applications.
Start button --> RUN and type in:
--> Click OK.
(If asked, select "Run.) --> Click on NEXT --> Select "I agree" and click on
NEXT --> When it finishes installing, click on "Finish"...
... and click on the "Microsoft Fix it" icon. When asked, select "RUN",
both times. Check the "I agree" box and click on "Next". Check the box
for "Run aggressive options (not recommended)" and click "Next". Let
it finish up and follow the prompts until it is done. Close/exit.
Every time you are about to click on something while at these web pages -
first press and hold down the CTRL key while you click on it. You can
release the CTRL key after clicking each time.
Once the scan is done, select just _ONE_ of the high priority updates
(deselect any others) and install it.
Reboot and logon as administrative user.
If it did work - try the web page again - selecting no more than 3-5 at a
time. Rebooting as needed.
The Optional Software updates are generally safe - although I recommend
against the "Windows Search" one and any of the "Office Live" ones or
"Windows Live" ones for now. I would completely avoid the
Optional Hardware updates. Also - I do not see any urgent need to install
Internet Explorer 8 at this time.
Come back - especially if you get stuck someplace, but even if you don't -
and let everyone know how it turns out.