Microsoft’s licensing terms explicitly define the legal use of product keys.
When a user searches for a "Windows 8.1 product key" on GitHub, they typically encounter one of two things:
The advent of Windows 8.1 brought numerous improvements and a fresh interface to users looking for a more modern computing experience. However, obtaining a legitimate product key for activation has been a challenge for some. The allure of free or cheap product keys on platforms like GitHub can be tempting, but it's essential to understand the implications and potential dangers of using such keys.
Reality: Even if a plain-text key works temporarily, it is almost certainly a stolen or leaked volume license key. When Microsoft detects hundreds of activation attempts from different IP addresses using the same key, it will blacklist that key. Your Windows will revert to “Not Genuine” mode, displaying a persistent watermark and disabling personalization features.