Updating xp to vista
Next, Windows will prompt the license terms, if you agree to these terms check the I accept the license terms and click Next.
Finally, Windows Vista will prompt you for the installation.
Running Windows Update ensures that your PC has the latest security patches and changes to XP, and it gives you the opportunity to install optional drivers and software.
If you’re running Windows XP on a network, it’s possible that your network security settings could stop you from using the Windows Update feature.
When that's done, update to Windows 8.1 Update via Windows Update.
Before following any of the steps below first make sure you go through the upgrading to Windows Vista steps.
After you've read the recommendations in the above document insert the Windows Vista DVD into the computer and Start the installation.
Windows will prompt you to go online to get the latest updates for the installation.
We highly recommend you choose this option to make sure that any updates that are available are downloaded before installing.
Next, you'll be prompted to go online and check for updates before installing Windows Vista.