Internet Options - USE TLS grey out.

 

Internet Options

Some settings are managed by your system administrator.

Reference:

1. KB5017811—Manage Transport Layer Security (TLS) 1.0 and 1.1 after default behavior change on September 20, 2022 - Microsoft Support
2. Error: Some Settings are managed by your system administrator, when - Microsoft Community
3. https://answers.microsoft.com/en-us/windows/forum/all/switching-from-tls-10-to-11-12-in-windows-10-help/137102b2-a1f0-4de2-8dd3-a51a854d4abe
4. 
   

After Enabled:     Turn off encryption support

Use TLS checkboxes are grey out.

Struggled few days then found this....

Although has set Not Configured for  Turn off encryption support

Still need to remove/delete/rename key below to enable those TLS checkboxes in Internet Options.

Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\CurrentVersion\Internet Settings\SecureProtocols

What I did were:

1. Set Not Configured for Turn off encryption support in:
1. Computer Configuration:
   
   Local Computer Policy > Computer Configuration > Administrative Templets > Windows Components > Internet Explorer > Internet Control Panel > Advanced Page > Turn off encryption support
   
   
2. User Configuration:
   
   Local Computer Policy > User Configuration > Administrative Templets > Windows Components > Internet Explorer > Internet Control Panel > Advanced Page > Turn off encryption support
   
   
2. Renamed key of SecureProtocols to tobedeleted_SecureProtocols

Relevant:

1. FortiClient failed to connect.