The registered owner and organization can be easily changed in Windows by changing two registry keys.

Follow these steps to get started:

1. Click on the Start Button and type in Regedit in the search box and hit Enter.
2. Navigate through HKEY_LOCAL_MACHINE, SOFTWARE, Microsoft, Windows NT and CurrentVersion.
3. Modify RegisteredOwner and RegisteredOrganization.
4. Reboot to see your changes.