Changes in Maintenance and Support for Office and Windows

Leipzig, 04/11/2018 – Just under two years before the end of the extended support period for Windows 7 and Office 2010, Microsoft has announced service extensions for Windows 10, and changes to system requirements for Office 365 ProPlus.

Service Extensions for Windows 10

Windows 10 is one of the most popular operating systems among companies of all kinds. When customers use this product, they automatically implement a modern maintenance method which Microsoft jestingly refers to as ‘Windows as a service.’ In order to meet customer requests, Microsoft has extended the support period for Windows versions 1511, 1607, 1703, and 1709. The following table shows the exact dates for each extended period.


Release date

End of support

End of additional servicing for Enterprise, Education

Windows 10, version 1511

November 10, 2015

October 10, 2017

April 10, 2018

Windows 10, version 1607

August 2, 2016

April 10, 2018

October 9, 2018

Windows 10, version 1703

April 5, 2017

October 9, 2018

April 9, 2019

Windows 10, version 1709

October 17, 2017

April 9, 2019

October 8, 2019

Furthermore, paid support for Windows 10 (from version 1607) is in planning. Microsoft will announce the exact details in the near future. 

Updates to System Requirements for Office 365 ProPlus

Office 365 ProPlus supplies cloud-based and continually updated versions of the Office desktop applications. In order to ensure that customers can administer ProPlus and Windows 10 together in the most secure and efficient way possible, Microsoft is introducing updates to the Windows system requirements for Office 365 ProPlus. The objective is for both Office and Windows to regularly receive coordinated updates in order to offer a secure environment with the latest functions.

The first change concerns all Windows 10 SAC versions. As matters stand, Office 365 ProPlus will no longer be supported on Windows versions which are no longer maintained as well. In addition, support for Office ProPlus will be phased out on the following Windows versions:

  • All Windows 10 LTSC releases,

  • Windows Server 2016 and older,

  • Windows 8.1 and older.

This means that while Office 365 ProPlus can still be used on older versions of Windows, Microsoft will no longer offer support for these versions or provide updates. These changes will take effect from 14 January 2020 onwards.

13 October 2020 should also be highlighted in every calendar. This is when access to different Office 365 online services such as Skype for Business Online, SharePoint Online, Teams, OneDrive, and so on, will no longer be available on Office versions for which Mainstream Support has expired.

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