| Support Milestone | Date | |------------------|------| | End of mainstream support | January 13, 2015 | | End of extended support | | | End of ESU (paid security updates) | January 10, 2023 (final) |

SP1 was a cumulative update rollup, but later updates (e.g., SHA-2 support, TLS 1.2) were released separately.

is an enterprise server operating system released by Microsoft. While the raw term implies a simple download, the reality is complex: Microsoft has ended all support for this OS, and direct downloads from official sources are no longer available for new users. Any download today carries significant legal, security, and operational risks unless accessed via a pre-existing Volume Licensing agreement.

Enhances the remote desktop experience by providing high-definition graphics and support for USB redirection in virtual environments.

: This feature allows Hyper-V to dynamically adjust the amount of physical RAM allocated to virtual machines based on their current workload . This leads to: