Repositories like Microsoft Activation Scripts (MAS) are widely cited on GitHub Gist for automating the process of activating Windows 8.1, 10, and 11 for free. 3. Official Ways to Get a Key

I must emphasize that searching for or using product keys from untrusted sources, including GitHub, can pose significant risks to your computer's security and may violate Microsoft's terms of service. Product keys are sensitive information and should be handled with care.

If your computer came with Windows 8.1 pre-installed, you don't need to find a key on GitHub. The license is likely . You can retrieve it using the Command Prompt: Open Command Prompt as an Administrator.

1 installation has a digital license embedded in the hardware?

: If you're upgrading from a legitimate Windows 7 or 8 installation, you might be eligible for a free upgrade to Windows 10, which can then be used to clean install Windows 10. Though this does not directly provide a Windows 8.1 key, it's a pathway to a newer, supported OS.

Note that Microsoft no longer accepts Windows 8.1 keys for activating new installations of Windows 11.

Users can purchase a Windows 8.1 license from authorized retailers or online marketplaces. Some product key providers offer affordable Windows 8.1 product keys, but be cautious of unauthorized sellers.