Here is a comparison of the best places to find a safe Windows 8.1 ISO:
Windows 8.1 reached its end of support on January 10, 2023. While Microsoft no longer provides security updates, you can still legally and safely download the original installation files if you have a valid license key. The Danger of Open Directories and "Index Of" Links Index Of Windows 8.1 Iso
Under , click SELECT and choose your downloaded Windows 8.1 ISO. Here is a comparison of the best places