Activating without a key isn’t about stealing. It’s about testing . It’s about building a PC for a relative who lost their key. It’s about spinning up a virtual machine for five minutes of work. Microsoft allows this silent, indefinite trial for a simple reason: they’d rather you use Windows unactivated than install Linux.

Select "I changed hardware on this device recently."

Search for a "Windows 10 activation batch script" online. These are widely available on developer forums.