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Encrypting File System Extension [MS-GPEF]: Group Policy: Encrypting File System Extension Intellectual Property Rights Notice for Open Specifications Documentation . Technical Documentation. Microsoft publishes Open Specifications documentation (“this documentation”) for protocols, file formats, data portability, computer languages, and standards support. Additionally, overview documents cover inter-protocol relationships and interactions. Copyrights. This documentation is covered by Microsoft copyrights. Regardless of any other terms that are contained in the terms of use for the Microsoft website that hosts this documentation, you can make copies of it in order to develop implementations of the technologies that are described in this documentation and can distribute portions of it in your implementations that use these technologies or in your documentation as necessary to properly document the implementation. 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If you would prefer a written license, or if the technologies described in this documentation are not covered by the Open Specifications Promise or Community Promise, as applicable, patent licenses are available by contacting [email protected]. License Programs. To see all of the protocols in scope under a specific license program and the associated patents, visit the Patent Map. Trademarks. The names of companies and products contained in this documentation might be covered by trademarks or similar intellectual property rights. This notice does not grant any licenses under those rights. For a list of Microsoft trademarks, visit www.microsoft.com/trademarks. Fictitious Names. The example companies, organizations, products, domain names, email addresses, logos, people, places, and events that are depicted in this documentation are fictitious. 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For questions and support, please contact [email protected]. 1 / 37 [MS-GPEF] - v20210625 Group Policy: Encrypting File System Extension Copyright © 2021 Microsoft Corporation Release: June 25, 2021 Revision Summary Revision Revision Date History Class Comments 12/18/2006 0.01 New Version 0.01 release 3/2/2007 1.0 Major Version 1.0 release 4/3/2007 1.1 Minor Version 1.1 release 5/11/2007 1.2 Minor Version 1.2 release 7/3/2007 1.2.1 Editorial Changed language and formatting in the technical content. 7/20/2007 1.2.2 Editorial Changed language and formatting in the technical content. 8/10/2007 2.0 Major Updated and revised the technical content. 9/28/2007 3.0 Major Updated and revised the technical content. 10/23/2007 3.0.1 Editorial Changed language and formatting in the technical content. 11/30/2007 3.0.2 Editorial Changed language and formatting in the technical content. 1/25/2008 3.0.3 Editorial Changed language and formatting in the technical content. 3/14/2008 4.0 Major Updated and revised the technical content. 5/16/2008 4.0.1 Editorial Changed language and formatting in the technical content. 6/20/2008 4.0.2 Editorial Changed language and formatting in the technical content. 7/25/2008 4.0.3 Editorial Changed language and formatting in the technical content. 8/29/2008 4.0.4 Editorial Changed language and formatting in the technical content. 10/24/2008 4.0.5 Editorial Changed language and formatting in the technical content. 12/5/2008 5.0 Major Updated and revised the technical content. 1/16/2009 5.0.1 Editorial Changed language and formatting in the technical content. 2/27/2009 5.0.2 Editorial Changed language and formatting in the technical content. 4/10/2009 5.0.3 Editorial Changed language and formatting in the technical content. 5/22/2009 6.0 Major Updated and revised the technical content. 7/2/2009 6.0.1 Editorial Changed language and formatting in the technical content. 8/14/2009 6.0.2 Editorial Changed language and formatting in the technical content. 9/25/2009 7.0 Major Updated and revised the technical content. 11/6/2009 8.0 Major Updated and revised the technical content. 12/18/2009 8.1 Minor Clarified the meaning of the technical content. 1/29/2010 9.0 Major Updated and revised the technical content. 3/12/2010 10.0 Major Updated and revised the technical content. 4/23/2010 10.0.1 Editorial Changed language and formatting in the technical content. 2 / 37 [MS-GPEF] - v20210625 Group Policy: Encrypting File System Extension Copyright © 2021 Microsoft Corporation Release: June 25, 2021 Revision Revision Date History Class Comments 6/4/2010 11.0 Major Updated and revised the technical content. 7/16/2010 12.0 Major Updated and revised the technical content. 8/27/2010 13.0 Major Updated and revised the technical content. 10/8/2010 13.1 Minor Clarified the meaning of the technical content. No changes to the meaning, language, or formatting of the 11/19/2010 13.1 None technical content. No changes to the meaning, language, or formatting of the 1/7/2011 13.1 None technical content. 2/11/2011 14.0 Major Updated and revised the technical content. 3/25/2011 15.0 Major Updated and revised the technical content. 5/6/2011 16.0 Major Updated and revised the technical content. 6/17/2011 16.1 Minor Clarified the meaning of the technical content. No changes to the meaning, language, or formatting of the 9/23/2011 16.1 None technical content. 12/16/2011 17.0 Major Updated and revised the technical content. No changes to the meaning, language, or formatting of the 3/30/2012 17.0 None technical content. No changes to the meaning, language, or formatting of the 7/12/2012 17.0 None technical content. No changes to the meaning, language, or formatting of the 10/25/2012 17.0 None technical content. 1/31/2013 18.0 Major Updated and revised the technical content. 8/8/2013 19.0 Major Updated and revised the technical content. No changes to the meaning, language, or formatting of the 11/14/2013 19.0 None technical content. No changes to the meaning, language, or formatting of the 2/13/2014 19.0 None technical content. 5/15/2014 19.1 Minor Clarified the meaning of the technical content. 6/30/2015 20.0 Major Significantly changed the technical content. No changes to the meaning, language, or formatting of the 10/16/2015 20.0 None technical content. No changes to the meaning, language, or formatting of the 7/14/2016 20.0 None technical content. No changes to the meaning, language, or formatting of the 6/1/2017 20.0 None technical content. 9/15/2017 21.0 Major Significantly changed the technical content. 9/12/2018 22.0 Major Significantly changed the technical content. 3 / 37 [MS-GPEF] - v20210625 Group Policy: Encrypting File System Extension Copyright © 2021 Microsoft Corporation Release: June 25, 2021 Revision Revision Date History Class Comments 4/7/2021 23.0 Major Significantly changed the technical content. 6/25/2021 24.0 Major Significantly changed the technical content. 4 / 37 [MS-GPEF] - v20210625 Group Policy: Encrypting File System Extension Copyright © 2021 Microsoft Corporation Release: June 25, 2021 Table of Contents 1 Introduction ............................................................................................................ 7 1.1 Glossary ........................................................................................................... 7 1.2 References ........................................................................................................ 9 1.2.1 Normative References ................................................................................. 10 1.2.2 Informative References ............................................................................... 10 1.3 Overview ........................................................................................................ 10 1.3.1 Background ............................................................................................... 10 1.3.2 EFS Group Policy Extension Overview ............................................................ 11 1.4 Relationship to Other Protocols .......................................................................... 12 1.5 Prerequisites/Preconditions
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