As of April 2026, Windows 12 has not been officially released by Microsoft . Any website or file claiming to be a "Windows 12 ISO" is likely a modified version of Windows 11 or, more dangerously, malware designed to compromise your system .
The "12" in "121" might refer to Server 2012. This was a popular server operating system, but mainstream support has ended. If you are specifically looking for legacy server software, this might be it, but it is not designed for regular desktop use. windows 121 iso file install
for a clean installation, which allows you to format your drive partitions. As of April 2026, Windows 12 has not
and enter your product key (or select "I don't have a product key" to activate later). "Custom: Install Windows only (advanced)" Windows Server 2012 R2 The "12" in "121"