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If you are upgrading from another edition of Windows Vista
- Open Control Panel by clicking the Start button, and then selecting Control Panel.
- Click System and Maintenance.
- Click Administrative Tools.
- Double-click Computer Management. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
- In the navigation pane, click Disk Management under Storage.
- Select the volume that contains the existing Windows Vista installation. Typically, this is drive C.
- Right click the volume, and then select Mark Partition as Active.
- Click Yes to confirm the action
Note At this point, the existing Windows installation will not be able to start until the remaining steps are completed.
- Close Computer Management.
- Insert the Windows Vista DVD.
- Restart the computer.
- Use the Windows Vista DVD to start the computer.
- Choose the desired language and keyboard settings, and then click Next.
- Click the Repair Your Computer link on the bottom left of the screen.
- When you are prompted to repar the startup data, click Repair and Restart.
- After the computer restarts, repeat steps 12 through 14.
- If your computer has a single Windows installation, click Next. Otherwise, choose the correct WIndows installation, and then click Next.
- Click the Startup Repair link.
- Click Finish when the repair has completed. The computer should restart to Windows Vista.
- Start the upgrade using the Windows Vista DVD.
Article ID: 928232 - Last Review: Oct 22, 2008 - Revision: 1