When Windows Vista is installed, a user and company name are entered. Unfortunately, there is no convenient way to change this information after installation. Surprise – you can do it in the Registry! Just go to:

HKEY_LOCAL_MACHINESoftwareMicrosoftWindows NTCurrentVersion

RegisteredOwner and RegisteredOrganization are the values you need, and you can change both to whatever you’d like. You may notice that the Registry key containing these values is in the Windows NT branch, rather than the more commonly used Windows branch. Don’t worry, both branches are used in Windows Vista. The less-used Windows NT branch contains more advanced settings, mostly those that differentiate the Windows 9x and Windows NT lines of operating systems.