When you’ve inherited someone else’s PC and want to make it your own, you can change the registered owner’s name in the Windows Registry. The How-To Geek runs down the steps; in a nutshell, using the registry editor (Start->Run->regedit.exe to get there), change the RegisteredOwner key value located in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion. As always, back up your registry before making changes, just in case.