How to enable TLS 1 2 Client on Windows

 How to enable TLS 1 2 Client on Windows:

With some very old application the underlying HTTP server needs to support https requests that are supported by TLS 1 or 2. 

This is a common error when you want to call https urls with certificate errors. Error messages could be 

"An error occurred while making the HTTP request to <https url>"

The solution for this issue is to add few registry entries so that we can call then again with successful responses. 

For 32-bit applications that are running on 32-bit OSs and for 64-bit applications that are running on 64-bit OSs, update the following subkey values:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v2.0.50727]

      "SystemDefaultTlsVersions" = dword:00000001

      "SchUseStrongCrypto" = dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]

      "SystemDefaultTlsVersions" = dword:00000001

      "SchUseStrongCrypto" = dword:00000001


For 32-bit applications that are running on 64-bit OSs, update the following subkey values:

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v2.0.50727]

      "SystemDefaultTlsVersions" = dword:00000001

      "SchUseStrongCrypto" = dword:00000001

[HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\v4.0.30319]

      "SystemDefaultTlsVersions" = dword:00000001

      "SchUseStrongCrypto" = dword:00000001 

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