Whizard

You sure you have not modified anything in Application Control?

The solution is posted just right above your post. You manually add Kaspersky certificate to Thunderbird.

This is odd. Have you made any rule changes from the defaults?

You panic too much. Stop spreading fear and doubt. Honestly, this is not such a big deal. I understand you are unhappy and curious at the same time and that honestly normal. That is the reason I suggested you contact KL tech support directly. This is just a user forum.

You can voice your opinion via my.kaspersky.com this is just a user forum. Or here https://support.kaspersky.com/b2c

Yes you can remove the log file once you are done with it.

Can you configure your KIS network type to Trusted and see if the problem goes away?

You saying that disabling "Firewall" component of KIS fixes this issue?

https://blogs.technet.microsoft.com/ash/2016/03/02/windows-10-device-guard-and-credential-guard-demystified

Ok, can we remove Steganos software and see if its working?

10.3 is not supported and not even officially released. Please downgrade to Mac OS Sierra (which is the current supported release).

Thats strange you should not have to do anything extra to get this working. Please post a GSI log from your workstation: How to help us help you with a log of your system

Yes,, that is the correct. There is no option to exclude at this time.

You can enable "Leaning Mode" by going into program settings and unticking the option " to select action automatically". You also did not specify which program is trying to make the NTP call.