On a regular basis, people ask me questions about changing user information, the information you provided when you installed Windows. You can change it. Here is a step-by-step instruction.
1. Open the Registry Editor (Type regedit inside the Run box and hit Enter)
2. Navigate to the following key
HKLM\SOFTWARE\Microsoft\Windows NT\ CurrentVersion
3. Look for the following details and make necessary changes as follows
>>RegisteredOrganizationThe name of the organization (Change this to your desired organization)
The name of the user (Change this to your desired name)
These changes are reflected in the system instantaneously and requies no reboot. You can confirm this by seeing the system properties (Right-Click on “My Computer” icon and select properties).
Both are REG_SZ values. Changing the registered organization and owner names doesn’t affect installed applications. However, applications that you install after changing these values are likely to pick up the new names.