How to Block a Program from Accessing the Internet Windows 11

[uk666]

How to Block a Program from Accessing the Internet Windows 11

1. Launch the Windows Settings app.
2. In the left sidebar, select "Network & internet."
3. Then, Click "Advanced network settings" and choose "Windows Firewall." 
4. Select "Advanced settings" from the centre bottom.
5. Select "Outbound Rules" from the left sidebar.
6. Select "New Rule" from the right sidebar
7. Select "Program" and then click Next.
8. Browse to the program's path and then click Next.
9. Choose the "Block the connection" option and then click Next.
10. Regardless, select all three choices and then click Next.
11. Fill in the program's name and description (optional), then click Finish.

[orfeo]

created rule to block windows 11 manager, intalled KG, application started one time and then closed. Restarted again and the rule to block disappear. Windoes 11 manage must have a task to erase rule 

[uk666]

I don’t use the built-in windows firewall, so I can’t really experiment.

But couple of things:

1. Did you grant administrator rights to the KG?
2. Disconnect from the Internet and install the program again of-line and maybe only use the program of-line, if you wish to try this suggest then you must remove all trace of the Windows 11 Manager by using something like Revo Uninstaller Pro.

[orfeo]

Hi

Uninstalled with Revo Uninstaller pro, reboot, set pc offline, installed W11manager, registred (offline) with generated key, then I open Windows 11 firewall (advanced security) to create a new rule (in and out) for Yamicsoft windows 11 manager, exit and run program - Offline again - it starts and, of course, it is all ok as no internet connection; BUT opening again firewall both the rules are disappaired.

It seems that windows 11 manager, when runs, check and erases the rules.

 

[Jamizon]

For this task, I use Windows Firewall Control. I'm not sure if i can link the site, but a simple google search will usually list the site as the first link.  It's a simple overlay for the Firewall already contained within Windows 11. After installation, simply enable "shell integration" in the options menu. Now, programs can be blocked (or unblocked) from the right click context menu from any program .exe or shortcut. Easy peasy. I've been using this program for years without any issues whatsoever, and, it's free.

 

Edit: clarity

Edited December 11, 2023 by Jamizon

[FunkyBuddha]

I ran into an issue similar to this. After blocking the app, some of its components still managed to call home. I use to pi-hole for dns sinkhole and mined the dns queries to block the sites.

[mgk1956]

I use Easyfirewall. Rules creation is quite easy for novices like me!

[FunkyBuddha]

The best firewall I've had a chance to use was Privatefirewall. Really bummed when development stopped. It still works great in Win7 and below.