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  5. How to disable TLS 1.0 and TLS 1.1 on Windows Server 2008/2016

How to disable TLS 1.0 and TLS 1.1 on Windows Server 2008/2016


  1. In the Windows start menu, type regedit and open it

  2. We strongly recommend backing up your current registry before making any changes. This can be done by clicking File, then Export and then save the backup at a safe location

  3. Go to the following path: Computer\HKEY_LOCAL_MACHINE\SYSTEM\

    How to disable TLS 1.0 and TLS 1.1 on Windows Server 2008/2016  

  4. Right-click on the empty space in the pane on the right side and choose New > Key

  5. Name the new key TLS 1.0

  6. Select the new key and right-click the empty space on the right side and add two new keys named Client and Server

  7. Select the Client key, right-click on the right side, and select New -> DWORD (32-bit) Value

  8. Name the DWORD Enabled, right-click on it, and select Modify. The base should be set to Hexadecimal and the value set to 0. Do the same with the Server key:

    How to disable TLS 1.0 and TLS 1.1 on Windows Server 2008/2016

  9. To disable TLS 1.1 repeat the same process making a new key TLS 1.1

  10. Close the registry and reboot your server

If anything goes wrong, you can revert to your initial registry settings by double-clicking your registry backup file created in step 2.

You can check if your configuration is correct by looking up your site in our SSL Labs checker:


In the Configuration section, you can see the protocols enabled for your site.

You can check which protocols are supported on a different version of Windows by following this link:


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