How Do I Change from Windows 7 Ultimate to Professional?

Can you downgrade Windows 7 Ultimate to professional?

You can downgrade Windows 7 Ultimate to Professional, or Home Premium. A re-boot after change of these registry keys is not necessary. For downgrading do not boot from Windows 7 installation DVD. Boot to Windows 7 and start “Setup.exe” from DVD; or after loading DVD the setup process starts automatically.

How do I change win7 Ultimate to professional?

Save the file to your hard disk and extract it.

1. Double click the Windows 7 Downgrader executable (notice I currently have Windows 7 Professional installed)
2. As you can see, the Windows 7 Downgrader utility is quite simple. …
3. Click Install Now.
4. Click Upgrade.
5. What you are doing now is a repair upgrade.