ChatGPT: Enabling TLS 1.2 on Windows Server depends on the specific version you are using. Here’s a breakdown of the steps required for different versions of Windows Server:
<<<snipped out see below>>>
ChatGPT: Enabling TLS 1.2 might also be necessary for some versions of Windows client operating systems, particularly older ones. Here’s a breakdown for various versions of Windows:
<<<snipped out see below>>>
Prompt: Check all the information you just gave me for accuracy. Tell me what might be incorrect.
ChatGPT: Here’s an updated and verified summary of enabling TLS 1.2 on various versions of Windows Server and Windows client operating systems:
Windows Server Versions
-
Windows Server 2008 and 2008 R2:
- Registry Changes Required: TLS 1.2 is not enabled by default.
- Open
regedit
. - Navigate to
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\
. - Create a key named
TLS 1.2
and under it createClient
andServer
subkeys. - In each subkey, create
DWORD
values namedEnabled
andDisabledByDefault
and setEnabled
to1
andDisabledByDefault
to0
. - Apply all updates including KB4019276 for Windows Server 2008 (Improve & Repeat) (DigiCert).
- Open
- Registry Changes Required: TLS 1.2 is not enabled by default.
-
Windows Server 2012 and 2012 R2:
- Registry Changes Required: TLS 1.2 is supported but may not be enabled by default.
- Follow the same registry changes as for Windows Server 2008/R2.
- Ensure
SchUseStrongCrypto
is set to1
for .NET Framework applications under the registry keys:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v2.0.50727
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319
- Apply the updates from KB3099844 for Windows Server 2012 (MS Learn) (Windows OS Hub).
- Registry Changes Required: TLS 1.2 is supported but may not be enabled by default.
-
Windows Server 2016, 2019, and 2022:
- Enabled by Default: TLS 1.2 is enabled by default and no registry changes are necessary (TecAdmin).
Windows Client Operating Systems
-
Windows 7 and Windows 8:
- Registry Changes Required: TLS 1.2 is not enabled by default.
- Follow similar steps as for Windows Server 2008 to create the necessary registry keys and values.
- Ensure updates including KB3140245 are applied to enable TLS 1.2 (Microsoft Support) (DigiCert).
- Registry Changes Required: TLS 1.2 is not enabled by default.
-
Windows 8.1:
- Enabled by Default: TLS 1.2 is supported and enabled by default, but for certain applications, manual enabling may still be needed as described for Server 2012 (MS Learn).
-
Windows 10 and Windows 11:
- Enabled by Default: TLS 1.2 is supported and enabled by default (MS Learn).
.NET Framework Configuration (Applicable to All Versions)
For applications running on .NET Framework, ensure that strong cryptography is enabled by setting the SchUseStrongCrypto
and SystemDefaultTlsVersions
registry values under:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v2.0.50727
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319
- Additionally, for 32-bit applications on 64-bit OSs, modify the keys under
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\
(MS Learn) (Windows OS Hub).
This information ensures accurate steps for enabling TLS 1.2 across different Windows versions, helping maintain secure communications.