- 1). Turn on your computer and allow it to boot normally. Insert your Windows 7 installation CD into the drive. Go to your CD drive in "Computer" and double-click "setup.exe."
- 2). Click "Install Now." Accept the Microsoft License Agreement and enter your 25-character product key. Choose the "Upgrade" installation type.
- 3). Follow the onscreen instructions. Click "Start" to begin the upgrade installation. Allow the process to fully complete. Reboot your computer. You have successfully upgraded your version of Microsoft Windows.
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