Hi @RNA ,
If you have installed the latest system patch, TLS1.0, 1.1 and 1.2 both enabled on server by default. You can get this information from Microsoft Learn.
You can check it from control panel.
If you still want to check it from the registry, it may difficult to check because the registry is more used to disable a certain TLS version. You can refer to this docs.
In order to override a system default and set a supported (D)TLS or SSL protocol version to the Disabled by default state, create DWORD registry values named "Enabled" and "DisabledByDefault" with a non-zero value under the corresponding version-specific subkey.
In order to override a system default and set a supported (D)TLS or SSL protocol version to the Disabled state, create a DWORD registry value named "Enabled", with a value of zero, under the corresponding version-specific subkey.
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Best regards,
Bruce Zhang