Can't connect to certain websites

I'm really starting to understand why so many people hate the windows operating system. Now that I have been fiddling with umpteen potential fixes for my website problem, changing settings in windows has caused other problems to appear. I'm a ham radio operator. Computers have become an integral part of that hobby. For example, I run a program called Dimension 4. It is used to accurately set the computer clock which must be dead on correct for certain ham radio applications. Now I can't load that program. I get the attached error message. So, just do what it says, you might say. Well, clicking the Allow button does nothing. Going through procedure to "elevate" the program does nothing. Now, because I've been farting around with all the other stuff, I've crated a new problem that I can't seem to fix. I'm a retired banker, not a computer tekkie. I'm intelligent enough to follow instructions but not knowledgeable enough to unravel the quagmire of potential windows glitches. Really gets me PO'd. Sorry for ranting.

This article says Chrome is now blocking some torrent sites. Could this be your problem?
Chrome blocking major torrent sites - Myce.com

Regarding Dimension 4 issue;

ThrashZone said:

...
Does the issue reoccur using clean boot ?
https://www.sevenforums.com/tutorials/179159-troubleshoot-application-conflicts-performing-clean-startup.html
Click Start and type in the search box,
msconfig
Click on the suggestion on top or hit the Enter key,
Go to the Startup section and take some screen shots for a complete list,
Go to the Services section and on the bottom left Check the box to Hide All Microsoft services,
Repeat the screen shots,
...

If you are still running with a clean boot then it is possible Dimension4 service/s are disabled. Open msconfig again and enable (tick) relevant services and startup items, restart and see if ok afterwards.

ThrashZone - Here are the screen shots you requested

Gokay - Yes, that worked. Dimension 4 is now running. Many thanks !

We are that community!

To be honest I still think this is a DNS cache issue. Can you try stopping DNS Client service please? Sorry from your reply I don't understand you actually tried.

Also try changing to a different DNS server.

Another thing I would try is go to https://zenmate.com with Firefox or Chrome (IE doesn't work) and install it. No registration needed, free browser based VPN service. It is as simlple as clicking one button to enable/disable from within the browser. See if you can connect reliably.