R 201601Z NOV 24 MARADMIN 563/24 MSGID/MARADMIN/CMC DCI WASHINGTON DC// SUBJ/MARINE CORPS ENTERPRISE NETWORK (MCEN) MICROSOFT WINDOWS 11 MIGRATION UPDATE AND COORDINATING INSTRUCTIONS// REF/A/DOC/DOD CIO/ DOD MIGRATION TO MICROSOFT WINDOWS 11, 08 JUN  2022// REF/B/MARADMIN /MARINE CORPS MICROSOFT WINDOWS 11 ADOPTION AND  REPORTING REQUIREMENTS/MARADMIN 340/22// REF/C/MARADMIN/ MARINE CORPS MICROSOFT WINDOWS 11 ADOPTION AND  REPORTING REQUIREMENTS/MARADMIN 490/23// REF/D/DOC/MCSC/USMC MODIFICATION INSTRUCTION, ENTERPRISE DESKTOP  STANDARD WINDOWS 11 SECURE HOST BASELINE IMAGE FOR WINDOWS-BASED END USER DEVICES (EUD), 31 JUL 23// REF/E/DOC/DOD CIO/DOD CIO FISCAL YEARS 2026-2030 CAPABILITY PLANNING GUIDANCE, 25 JAN 24// REF/F/DOC/DC I/MARINE CORPS ENTERPRISE NETWORK (MCEN) IMPLEMENTATION PLAN, FY24-28, 25 JAN 24// NARR/REF A IS DOD CIO MANDATE TO MIGRATE TO MICROSOFT WINDOWS 11  (WIN-11) OPERATING SYSTEM (OS) NO LATER THAN (NLT) 14 OCT 2025.   REFS B AND C ARE INITIAL AND INTERIM MARINE CORPS WIN-11 MIGRATION GUIDANCE.  REF D PROVIDES INSTRUCTIONS FOR THE INSTALLATION OF THE  MARINE CORPS ENTERPRISE DESKTOP STANDARDIZATION (MCEDS) WIN11 SECURE HOST BASELINE IMAGE TO ALL MARINE CORPS WINDOWS-BASED PRINCIPAL END  ITEM END USER DEVICES (EUD) AND INCLUDES DISPOSAL INSTRUCTIONS FOR  NON-WIN-11 COMPLIANT EUDS.  REF E IS DOD CIO CAPABILITY PLANNING  GUIDANCE TO ACHIEVE A 3-YEAR LIFECYCLE REPLACEMENT STANDARD FOR END USER DEVICES.  REF F IS THE MCEN IMPLEMENTATION PLAN.// POC/TREVOR DANIEL/CIV/DCI IC4 /TEL: (571) 256-9082/EMAIL:  [email protected]// POC/CHRISTOPHER DAY/CIV/MARFORCYBER G-36/TEL: (667) 812-6397/EMAIL:  [email protected]// POC/TORWON MITCHELL/CIV/PEO DIGITAL PFM EUS/TEL: (703) 432-7917/ EMAIL: [email protected]// POC/KEVIN ROGOWSKI/CIV/DC CD&I CAPABILITIES INTEGRATION OFFICER,  CE-INFO/TEL (703) 432-8673 / EMAIL: [email protected]// GENTEXT/REMARKS/1.  Purpose.  This is a coordinated DC I, DC CD&I,  MFCC, and MCSC / PEO Digital message to provide an update on WIN-11 migration progress, identify actions required for the expeditious  decommissioning and disposal of legacy EUDs supporting the Windows  10 (WIN-10) OS, and to posture the Marine Corps for a sustainable  life cycle replacement standard for general purpose EUDs.  2.  Situation.   2.A.  The ref (a), There are no waiver provisions for EUDs hosting a Microsoft Windows OS that connect to DoD Information Networks  (DODIN).  WIN-11 migration mandate applies to all functional areas  and program and non-program mission systems.    2.B.  Based on the approved acquisition objective (AAO) for Table of Authorized Material Control Number (TAMCN) A91007G general purpose  laptop computers, new hardware procurements required to support  WIN-11 migration are complete. Over 118,000 WIN-11 compliant TAMCN  A91007G EUDS have been imaged and shipped to Fleet Marine Force  (FMF) and Supporting Establishment (SE) organizations by the  Enterprise Staging and Delivery (ES&D) activity.  PEO Digital End  User Services (EUS) anticipates all EUDs required for Enterprise  migration will be available to end users NLT 31 Jan 2025.    2.C.  While steady WIN-11 migration progress has been made over the  last two years, a significant percentage of NIPR and SIPR EUDs are  still hosting the WIN-10 OS.  The use of outdated EUDs hosting the  WIN-10 OS persists even though an ample supply of new WIN-11  compatible EUDs are available to meet all MCEN A91007G requirements and eradicate all instances of the WIN-10 OS on the MCEN.   2.D.  Additionally, over 20,000 EUDs managed by MCSC and affiliated PEOs in support of tactical, mission or business systems host WIN-10 or earlier Microsoft OS versions and are not WIN-11 compliant.   These programs of record (PoR) require EUD replacements to host the WIN-11 OS or transition to a Microsoft Long Term Service Channel  (LTSC) solution prior to 14 Oct 25.   2.E.  Guidance in ref (e) for a three-year replacement standard  conflicts with the current MCEN EUD lifecycle replacement standard  of four years.  As ref (f) is executed, it is imperative the Marine Corps has a sustainable EUD lifecycle replacement standard based on  an updated and validated AAO that reflects future MCEN unification  and expanded EUD fielding. 3.  Mission.  In accordance with ref (a), the Marine Corps will  execute the migration from Microsoft WIN-10 to WIN-11 no later than  the WIN10 EOS date of 14 Oct 2025, and plan for a sustainable  lifecycle replacement standard across the Fiscal Years Defense Plan (FYDP).  4.  Execution. 4.A.  Commander's Intent 4.A.1.  The WIN-11 OS provides key improvements in cybersecurity  with built-in hardware isolation, advanced encryption and data  protection, improved network and system security and other  safeguards against evolving cybersecurity threats, all of which  contribute to increased readiness of the force.   4.A.2.  Commercial software deployed on DoD networks must remain up  to date as end-of-life software introduces vulnerabilities that  threaten the integrity of our networks and operational data.  The  WIN-10 OS reaches end of life and end of support on 14 Oct 2025.   The Marine Corps must migrate to WIN-11 prior to this date. 4.A.3.  The Enterprise has procured and shipped sufficient assets to rapidly complete migration to the WIN-11 OS and the elimination of  the WIN-10 OS on the MCEN and tactical extensions.  As we enter the final phases of the WIN-11 migration, actions are required to ensure migration objectives are met, risks are identified and mitigated in  a timely manner, and a sustainable lifecycle replacement strategy is developed. 4.B.  Tasks 4.B.1.  MARFORCYBER 4.B.1.A.  NLT 14 Oct 2025, be prepared to isolate all instances of  Microsoft WIN-10 OS on the MCEN, to include MCSC and affiliated PEO PoR endpoints for which no approved plan of action and milestones  (POAM) to use a Microsoft LTSC solution has been submitted. 4.B.2.  MCSC, PEO Land Systems, PEO Manpower, Logistics, and  Business Systems, and PEO DES Portfolio Managers (PfM). 4.B.2.A.  There is no waiver to the DoD CIO WIN-11 mandate for end  points connected to the MCEN or some other portion of the DODIN.  As of 14 Oct 25, tactical, mission or business system PoR EUDs hosting  a Microsoft OS and connecting to the MCEN or another portion of the  DODIN must be WIN-11 compliant or those endpoints will be isolated  from the MCEN. 4.B.2.B.  Tactical, mission or business systems hosting a Microsoft  OS but not connecting to the MCEN or other portions of the DODIN and not able to migrate to WIN-11 must deploy an approved alternative  LTSC solution.  Program managers and system owners should submit  POAMs to their local Information System Security Manager (ISSM) for approval or risk denial of authority to operate (DATO). 4.B.2.C.  Continue to report overall WIN-11 migration progress via  the WIN-11 Migration Dashboard at the link provided in paragraph  4.B.5.B. of this message.      4.B.3.  DC CD&I 4.B.3.A.  Ref (e) guidance prioritizes replacing end user devices to achieve a 3-year lifecycle replacement standard in contrast to the  current 4-year MCEN EUD replacement standard.  In order to  rationalize the Marine Corps’ alternative 4-year standard and to  support future EUD investment decisions, conduct a review and  revalidation of the AAO for the A9100 series of TAMCN assets NLT 3Q, FY-25. 4.B.4.  DC I IC4 4.B.4.1.  Continue to monitor and report on WIN-11 A91007G hardware  procurements and ES&D deliveries, the pace of WIN-10 elimination on  the MCEN MCDSUS, and MCSC and affiliated PEO PoR WIN-11 Migration  POAM submissions. 4.B.4.2.  Coordinate with PEO Digital for the continued operation of the WIN-11 Dashboard and support PEO Digital efforts to collect and  synchronize data from disparate sources to provide a comprehensive  WIN-11 migration operational picture.   4.B.4.3.  Conduct a data call with the FMF and SE to identify those  assets shipped from ES&D, but not found on the MCEN MCDSUS to  determine the number of assets deployed on tactical extensions of  the MCEN, deployed to training venues, or pre-positioned ISO  exercises or real-world operational contingencies.  This data call  will inform AAO revalidation discussed in paragraph 4.B.3.A. and  should be completed NLT 2Q, FY 25. 4.B.5.  Commanders 4.B.5.A.  Execution of the Enterprise WIN-11 migration requires  Commanders to take custody of their allotted replacement EUDs once  delivered to their issue points and ensure compliance with ref (d)  in a timely manner. 4.B.5.B.  Commanders should refer to the WIN-11 Migration Dashboard  for the status of deliveries of tech refresh WIN -11 compliant EUDs  destined for their commands.  The WIN-11 Dashboard can be accessed  at the following SharePoint link:  https://app.mil.powerbigov.us/ groups/me/reports/040967fb-7fc2-4d67-aa38-7e9d9b6f16a2/Report Section30f3524a87c7f509e611. 5.  Administration and Logistics.  Refer all questions to the points of contact listed above. 6.  Command and Signal.  Release authorized by LtGen M. G. Carter,  Headquarters Marine Corps, Deputy Commandant for Information.//