Installing from the Windows Server 2012 ISO unlocks features that were groundbreaking for its era (released September 2012):

: This is the primary source for a free 180-day trial. You can download the Windows Server 2012 R2 Evaluation ISO after filling out a registration form.

As of this writing, Windows Server 2012 and its updated version have left mainstream support (mainstream ended October 2018, extended support ended October 2023). However, legitimate ISOs remain available through:

Microsoft officially ended Mainstream Support for Windows Server 2012 on October 9, 2018, and Extended Support ended on October 10, 2023 . This means the operating system no longer receives security updates or technical support.

While Windows Server 2022 and 2025 are current, the 2012 ISO retains importance for several reasons: