To enable TLS 1.1 and TLS 1.2 in Windows 7 and Windows 8.1, assuming all of the latest updates for your system are already installed.

Open Notepad

Copy the following into Notepad

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp]
"DefaultSecureProtocols"=dword:00000a00

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp]
"DefaultSecureProtocols"=dword:00000a00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Client]
"DisabledByDefault"=dword:00000000
"Enabled"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client]
"DisabledByDefault"=dword:00000000
"Enabled"=dword:00000001

Save the file as enable_tls.reg, choosing Save as type: All files (*.*) at the bottom of the Save dialog window.

Double click that file where you choose to save it and when prompted do you want to add these settings to your registry, choose Yes.

Restart computer and now you will have full TLS 1.1 and TLS 1.2 client functionality.