![]() ![]() TLS 1.1 and 1.2 protocols are not available without the KB 3140245 update. On Windows 8 and later versionsīy default, the TLS 1.2 and 1.1 protocols are available if no network devices are configured to reject TLS 1.2 traffic. All Office clients can use TLS protocols, as TLS and SSL protocols are part of the operating system and not specific to the Office client. The Office client can use TLS 1.2 if the web service of the local computer can use TLS 1.2. The Office client relies on the Windows web service (WINHTTP) to send and receive traffic over TLS protocols. For information, see How to enable TLS 1.2 on clients. This article is only intended to cover the Office 365 local client in relation to the Office 365 service but can also apply to on-premises TLS issues with Office and Office Online Server/Office Web Apps.įor SharePoint and OneDrive, you'll need to update and configure. This change has been publicized for over two years, with the first public announcement made in December 2017. Rollout will continue over the following weeks and months.Īs of October 31, 2018, the Transport Layer Security (TLS) 1.0 and 1.1 protocols are deprecated for the Microsoft 365 service. As supply chains have adjusted and certain countries open back up, we restarted the TLS 1.2 enforcement rollout on October 15, 2020. We temporarily halted disablement of TLS 1.0 and 1.1 for commercial customers due to COVID-19.
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