This is the only way to "activate" without buying a retail key, but it requires a specific infrastructure.
How to Activate Windows Without a Product Key: Methods and Legal Considerations how to activate windows without a product key
So, how do you turn that "unactivated" copy into an "activated" one without buying a key? Here are three legitimate methods. This is the only way to "activate" without
While the operating system functions perfectly fine for browsing the web, playing games, and running most software, Microsoft places a few restrictions on unactivated Windows. and running most software
Most modern laptops come with a "built-in" key embedded in the BIOS or UEFI firmware. If you reinstall the version of Windows that came with the device, it should automatically detect this key and activate without manual input.