The popular utility Rufus features a "Download" script that can pull official Windows 8.1 ISOs directly from Microsoft’s servers for you.
This is the most secure and official method. Subscribers can log in to my.visualstudio.com, search for "Windows 8.1," and download verified ISOs with official SHA-1 hashes. windows 8.1 iso
Windows 8.1 is known for its efficiency on older hardware. To run it, your system must meet these minimum specifications: The popular utility Rufus features a "Download" script
Still Stuck on Windows 8.1? How to Upgrade to Windows 10 or 11 search for "Windows 8.1