Downloading a Windows 8.1 64-bit ISO has become more complex since Microsoft officially ended support for the operating system on January 10, 2023 . While the official direct download page is no longer active, you can still obtain the ISO through specific secondary Microsoft channels or community archives. Microsoft Support Official Microsoft Sources MSDN / Visual Studio Subscriptions
While Microsoft no longer hosts a direct, public "Download Windows 8.1" landing page for standard retail users, there are still official and community-verified ways to obtain the image: download windows 8.1 iso 64 bit
Here's how you can download Windows 8.1 ISO 64-bit: Downloading a Windows 8
While less common for 8.1 now, Microsoft previously offered a "Windows Installation Media" tool that automates the process of creating a bootable USB drive or downloading the ISO. download windows 8.1 iso 64 bit