01.Why do this?
Many programs (like Adobe, Autodesk, Single Player Games) try to connect to the internet every 5 minutes to:
1. Download updates you didn't ask for.
2. Send usage data (telemetry) about your PC.
3. Verify licenses online.
Blocking the executable (.exe) in the firewall ensures the program works in isolation, without using your bandwidth or tracking your data.
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02.Method 1: Windows Firewall (Built-in)
The native firewall is powerful, but the interface is old. Follow carefully:
Step-by-Step Visual Guide
- Open the Start Menu and type: "Windows Firewall with Advanced Security" (or
wf.mscin Run). - In the left panel, click on Outbound Rules.
Note: Outbound Rules block programs from EXITING to the internet. Inbound Rules block hackers from entering. - In the right panel, click New Rule...
- Choose Program and click Next.
- Click "This program path" and Browse....
Go to the folder where the game/program is installed and select the main executable (e.g.,game.exe). - On the next screen, SELECT: Block the connection.
- Check all boxes (Domain, Private, Public).
- Give it an easy name (e.g., "Block Game X") and click Finish.
Done! A red "prohibited" icon will appear in the list. The program is offline forever.
03.Method 2: SimpleWall (For Easy Use)
If you found the method above complicated, SimpleWall is a tiny open-source program that makes this visual.
- When opened, it shows all processes currently trying to use the internet.
- You just need to uncheck the box next to the program name.
- If the box isn't checked, the internet is blocked. It's that simple.
A1.What if the program has multiple executables?
The Launcher Trick
Many modern games have a Launcher.exe and a Game-Win64-Shipping.exe hidden in a subfolder.
If you only block the Launcher, the game might still connect online.
Pro Tip: Open Task Manager while the game is running. Right-click the game process > "Open file location". This is the real executable you should block.
A2.How to Unblock later?
Changed your mind? Want to download the update?
1. Open Advanced Firewall again.
2. Go to Outbound Rules.
3. The rule you created will be at the top or in alphabetical order.
4. Select it and click Delete (on the right) or Disable Rule (to pause temporarily).
Inbound vs Outbound Rules
Understanding the Difference
Outbound Rule
Your PC trying to talk to a Google server. (What we want to block).
Inbound Rule
An external server trying to start a conversation with your PC. (The router already blocks this via NAT, but the Firewall is the second barrier).
Don't do it Manually.
Voltris Optimizer automates this entire guide and removes Windows delay in seconds.
Written by a verified expert
Voltris Security
Expert in Windows system optimization with years of experience in hardware diagnostics, kernel tuning, and advanced technical support. Founder of Voltris and developer of the Voltris Optimizer.
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By following this guide on How to Block a Program's Internet: The Ultimate Firewall Guide (2026), you are equipped with the verified technical knowledge to solve this issue with confidence.
If you still have difficulties after following all steps, our expert support team is available for a personalized remote diagnosis. Every system is unique and may require a specific approach.