The End of Support Calendar shows Microsoft Operating Systems end of support dates, whether they are the end of mainstream support that updates features and cosmetic changes, or extended support, which ends security fixes and all Microsoft technical support other than old web pages.
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Tue09Jan2018
Mainstream Support refers to updated designs and features and other cosmetic changes and support provided by Microsoft that do not fall under security updates.
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Thu01Mar2018
(Date is approximate)
Windows 10, version 1607, is also known as Build 14393, and was the "Anniversary Update" to Windows 10. After Extended support ends, there will be no more security patches to this version of Windows. -
Tue10Apr2018
Includes all programs within this version of Microsoft Office, but the security problems apply in particular to software that receives information from the Internet: Outlook, OneNote.
The support date is for the last service pack for this version of Office, Service Pack 1. Support for this version of Office, without service packs, ended April 14th, 2015.
Mainstream Support refers to updated designs and features and other cosmetic changes and support provided by Microsoft that do not fall under security updates.
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Sat30Jun2018
TLS version 1.0 will fail PCI Compliance rules after June 30th. This is a security protocol and encryption method, long known to be flawed, but broken only with considerable difficulty. It should be replaced with TLS version 1.2 or above. TLS 1.0 can be disabled in Windows; there is a setting in the Control Panel of Windows 7 and higher. It's under Internet properties, advanced, security, uncheck SSL 3 and TLS 1.0, add checks to 1.1 and 1.2 if not already there.
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Sat01Sep2018
Windows 10, version 1703, is also known as Build 15063, and was the "Creators Update" to Windows 10. After Extended support ends, there will be no more security patches to this version of Windows.