How to Repair Windows XP SP3by Kefa Olang
Service Pack 3 is the last Windows XP operating system update pack. It includes new security fixes, updated drivers and system components that improve your computer's performance and security. Malicious programs such as Trojans and viruses can damage Service Pack 3 files and diminish your system's performance. With some troubleshooting steps, you can repair or reinstall Service Pack 3.
Click the Windows "Start" menu and click the "Control Panel."
Double-click "Add or Remove Programs" to launch the programs list. Click the "Show updates" check-box on the top of the window.
Scroll down the list of installed programs and click "Service Pack 3." Click "Repair" and follow the guided prompts to repair the installed update. When prompted, restart your computer.
Uninstall Service Pack 3 and reinstall a fresh new copy of the update if you are still having problems. To uninstall the update, go back to the "Add or Remove Programs" list on the Control Panel.
Scroll down the list and click "Service Pack 3." Click "Remove." Click "Yes" to confirm and remove the application. When prompted, restart your computer.
Go to the Windows XP Service Pack 3 download page and click "Windows Update." Click the "Express" button to reinstall Service Pack 3. When prompted, restart your computer.