Hi TerryT, Welcome to TSF! :wave:
First up, do you have an AMD processor in your computer?...If so,
please read this.
This may also help you too...
Please try this method to install the Windows® Service Pack 3...
XP- SP3 Installation Instructions
Before installing the XP-SP3, perform these steps
FIRST:
1: Use the
Windows® Disk Clean up Tool. (
Click the coloured Link.)
2: Perform a Disk Defragment....Reboot the computer.
3: Manually create a
"System Restore Point"; call it, say,
Before SP3
4: Download the standalone version of SP3 from Microsoft®.
SP3 Standalone Version ..."Save" it to the computer rather than using the 'Open' or 'Run' options.
5: Once downloaded,
Right click the icon >
”Unblock”.
6: Disconnect from the Internet; (
pull the power from the modem/router); disable any Firewalls; pop-up blockers, and Anti Virus and Spyware programs (especially Spyware Terminator™).
7: Start the installation and follow the prompts....When finished, reconnect to the Internet
first; reboot the computer.
Important Note: While the SP3 is installing, do not attempt to do any other tasks on the computer until it has finished, this will ensure a ‘clean’ upgrade.
Report back with the results.
Kind Regards,