1. Insert the Windows installation DVD into the DVD-ROM; Click Exit if the auto-menu pops up.
2. Open an elevated command prompt. To do this, click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
3. At the command prompt, type the following command, and then press ENTER: