If you need legitimate ways to use Windows 8.1, I can instead offer:
If your computer (like a laptop) came with Windows 8.1 pre-installed, the product key is likely embedded in the BIOS and should activate automatically upon a clean reinstall. Upgrade to Windows 10/11: If you need legitimate ways to use Windows 8
on January 10, 2023. This means Microsoft no longer provides security updates for it, making it inherently risky to use online regardless of activation. If you need legitimate ways to use Windows 8