On Windows 7 computers, applications and services written using WinHTTP for Secure Sockets Layer (SSL) connections do not support TLS 1.1 or TLS 1.2 protocols, causing any connection to servers that support these protocols to fail.
The lack of support for TLS 1.1 & TLS 1.2 protocols in Windows 7 & Server 2008/2012, affects Outlook* and other Microsoft applications (such as Word and Excel) that use these protocols to connect to a SharePoint library, and also affects applications that use technologies such as WebClient using WebDav or WinRM. *
* For example: If you're using Outlook in Windows 7 with SSL/TLS, you'll receive the error "Your server does not support the connection encryption type you have specified"
How to enable TLS 1.1 & TLS 1.2 on Windows 7, Server 2008 R2 & Server 2012.
Step 1. Install Windows 7 or Server 2008 R2 Service Pack 1.
Make sure that your have installed the Windows Service Pack 1. If not, download and install it from here.
Step 2. Install Windows update KB3140245.
Step 1. Enable TLS 1.1 & TLS 1.2 support in Windows through Registry. *
1. Open the Registry Editor. To do that:
2. Navigate to the following path in registry:
3a. At the right pane, right-click on an empty space and select New > DWORD (32-bit Value).
3b. Name the new value as: DefaultSecureProtocols
3c. Now open the DefaultSecureProtocols value, type at value data a00 and click OK.
4. Next, and only if you're using an 64-bit OS, repeat steps 3a, 3b & 3c and create again the DefaultSecureProtocols REG_DWORD (32-bit) with value a00 at the following registry location:
5. Now, navigate to the following registry path to enable TLS 1.1 & TLS 1.2 on Windows 7:
6a. On the left pane, right-click at Protocols key and select New > Key
6b. Name the new key as: TLS 1.1
6c. Then right-click at TLS 1.1 and select again New > Key.
6d. Name the new key as: Client
6e. Now, select the Client key and then at the right pane, right-click at an empty space and select New > DWORD (32-bit Value).
6f. Name the new value as: DisabledByDefault
6g. Finally, open the DisabledByDefault REG_DWORD, enter 0 in the Value Data text box and click OK.
7. Now, right-click again at the Protocols key on the left and select New > Key.
7a. Name the new key as: TLS 1.2
7c. Repeat the steps 6c – 6g to create the Client key and then to create the DisabledByDefault REG_DWORD with value 0.
8. When done, close the Registry Editor and restart the PC.
That’s all folks! Did it work for you?
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