- 1). Click "Backup," found in "System Tools" in the Start menu.
- 2). Click "Next" and choose to back up your files.
- 3). Click to choose what you want to save. Select your "Call of Duty" installation path, which you specified during installation.
- 4). Click to choose where to back up your files.
- 5). Plug your external hard drive to the computer and choose it as a destination for your backup files.
- 6). Click "Finish" and wait for the files to backup.
- 7). Upgrade to Vista. Follow all of the on-screen prompts to complete installation.
- 8). Open the Backup function again, but choose to restore files. Follow the on-screen instructions to retrieve your files from the external hard drive.
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