12/31/2023 0 Comments Tls versions not being supportedYou only need the Windows 7 SP1 ( KB 3140245) update. That is, unless you have to customize what secure protocols are enabled or restricted, this key is not required. Regardless if the Windows 7 update ( KB 3140245) is installed or not, the DefaultSecureProtocols registry sub key isn't present and must be added manually or through a group policy object (GPO). For more information, see KB 3140245 Update to enable TLS 1.1 and TLS 1.2 as a default secure protocols in WinHTTP in Windows. You can use the default Windows Calculator in Programmer mode to set up the same reference registry key values. For more information about SSL 3.0 vulnerabilities, refer to KB 3009008. The best practice is to end the use of SSL 2.0 and SSL 3.0, although the decision to do this ultimately depends on what best meets your product needs. SSL 2.0 and 3.0 are considered outdated and insecure protocols. Enabled protocols for Office 365 service after October 31, 2018ĭon't use the SSL 2.0 and 3.0 protocols, which can also be set by using the DefaultSecureProtocols key. The following table shows the appropriate registry key values in Office 365 clients after October 31, 2018. This is a general article for IT administrators, and it's official documentation about the TLS 1.2 change. You can refer to KB 4057306 Preparing for the mandatory use of TLS 1.2 in Office 365. The value of the DefaultSecureProtocols registry key that the KB article describes determines which network protocols can be used: DefaultSecureProtocols Value KB 3140245 has details about how to change WINHTTP settings to enable TLS protocols. Windows 7 users who do not have this update are affected as of October 31, 2018. ![]() The update addresses this issue and adds the following registry sub key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp 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. ![]() Learn details about signing up and trial terms. Start now at the Microsoft Purview compliance portal trials hub. If you're not an E5 customer, use the 90-day Microsoft Purview solutions trial to explore how additional Purview capabilities can help your organization manage data security and compliance needs.
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