Because you survived this long with Windows XP, the likelihood that you will reinstall is good. Use Nlite to slipstream SP3 into your Windows XP installation CD and make a new installation disc. It’ll save you a ton of time. 99% of your updates will be there along with your service packs.
What You Will Need:
Windows XP Disc
Install Nlite on your computer. Follow the step-by-step instructions to slip stream Microsoft SP3 into your installation files. Step-by-Step Guide. The next time you install Windows, SP3 will be installed automatically.