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Change the registered owner information by editing the registry.
Be sure to back up the registry before making changes.

Open a registry editor
In the left pane, navigate to the following registry key:
HKEY LOCAL MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
In the right details pane, double click the entry labeled RegisteredOwner. In the Value Data field, delete
the name and type in the name you want. Click OK
You can similarly change the company name (or make it blank) by double clicking the entry labeled
RegisteredOrganization and editing the Value Data field
 

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