The DoD's decision to migrate to Windows 11 is driven by several key factors, including the need for enhanced security, improved performance, and better support for modern workforce requirements. With the increasing sophistication of cyber threats, the DoD recognizes the importance of maintaining a secure and up-to-date IT environment that can protect its sensitive information and systems.
Windows 11 relies heavily on cloud-based reputation checks for its SmartScreen filter. For disconnected DoD assets, DISA had to develop an "On-Premises Reputation Server"—essentially a local cache of safe/unsafe file hashes that updates via sneakernet or secure satellite burst transmissions. This solution added six months to the migration timeline for Navy fleet systems. dod migration to microsoft windows 11 june 8 2022
– In a move that sent ripples through both the defense contracting sector and the broader IT industry, the United States Department of Defense (DoD) officially solidified its timeline for one of the largest enterprise operating system migrations in history. On this date, internal memoranda and public statements from the Defense Information Systems Agency (DISA) converged to confirm what many had anticipated: The DoD is moving to Microsoft Windows 11. The DoD's decision to migrate to Windows 11
Windows 11 requires TPM 2.0—a secure cryptoprocessor—which was not standard on many legacy DoD systems purchased between 2015 and 2019. According to internal DISA estimates cited on June 8, approximately 1.2 million DoD endpoints (laptops, desktops, and ruggedized tablets) were deemed "non-compliant" at the hardware level. For disconnected DoD assets, DISA had to develop
: Final end-of-support (EOS) for Windows 10, after which any remaining legacy devices risk losing authority to operate (DATO) or facing network isolation. DON Migration to Windows 11 Operating System