A number of preparation tasks should be completed before starting the upgrade of any computer to Windows XP Professional. Performing these tasks will help ensure a smoother installation and prevent the loss of any user data during upgrade. These tasks include:
Collect networking settings. If the computer is part of a network make sure that you record its name, domain, or workgroup name and any TCP/ IP configuration settings.
Install additional hardware. Install additional memory or disk space if required to meet Windows XP Professional's minimum hardware requirements.
Perform backups. Even though an upgrade is not supposed to result in the loss of any data, it's best to make a complete copy of user files just in case something catastrophic occurs during the upgrade.
Clean up the disk drive. Run either the Windows ChkDsk or ScanDisk disk management utility to clean up any errors on the computer's hard disks.
Free up disk space. Run Disk Cleanup to free up additional disk space and ensure that you have adequate disk space to install Windows XP Professional.
Resolve any existing hardware issues. Make sure that everything is working before you begin the upgrade.
Scan for viruses. Microsoft recommends that you run an antivirus program to ensure that the computer is free of viruses before attempting any upgrade.
Uninstall third-party utilities. Many third party utilities will not function on Windows XP, including antivirus disk management utilities.
Uninstall incompatible hardware and applications. Leaving incompatible hardware or software on the computer may result in problems during or after an upgrade.