How To Fix “Avast Block LOL” Error

Avast Block LOL

Avast is a popular antivirus software that offers robust protection against various threats. However, there are instances where Avast may mistakenly block legitimate programs, including online games like League of Legends. This can be frustrating for gamers who want to enjoy uninterrupted gameplay.

In this comprehensive guide, we will explore the causes behind Avast blocking League of Legends and provide detailed step-by-step solutions to help you fix this error and ensure a seamless gaming experience.

When Avast blocks League of Legends, it prevents the game from launching or connecting to the internet, leading to connectivity and gameplay issues. This can occur due to Avast’s firewall settings or false positives that misidentify League of Legends as a potential threat.

Understanding the causes behind this error and implementing the appropriate solutions is crucial for resolving the issue and allowing Avast to work harmoniously with League of Legends.

Avast Block LOL

Causes of Avast Block LOL Error

Firewall Settings: Avast’s firewall may be configured to block League of Legends by default, perceiving it as a potential security risk.

False Positive Detection: Avast’s security algorithms might mistakenly identify League of Legends files or processes as malicious, triggering the block.

Outdated Avast Version: Using an outdated version of Avast may result in compatibility issues with League of Legends, leading to blocking errors.

Solutions to Fix Avast Block LOL Error

Follow these step-by-step solutions to fix Avast blocking League of Legends and ensure uninterrupted gameplay:

Solution 1: Disable Avast’s Firewall Temporarily

Step 1: Right-click on the Avast icon in the system tray and select “Open Avast.”

Step 2: Go to “Protection” and click on “Firewall.”

Step 3: Toggle the switch to turn off the firewall temporarily.

Step 4: Launch League of Legends and check if the block issue is resolved.

Step 5: Remember to re-enable the firewall after playing by toggling the switch again.

Solution 2: Add League of Legends as an Exception

Step 1: Open Avast and go to “Protection.”

Step 2: Select “Firewall” and click on “Application settings.”

Step 3: Click on “New Application Rule” or “Add Exception” (depending on your Avast version).

Step 4: Browse and locate the League of Legends executable file (usually located in the game installation folder).

Step 5: Add the file as an exception and set the rule to “Allow” or “Full Access.”

Step 6: Save the settings and restart League of Legends to check if the block is resolved.

Solution 3: Update Avast to the Latest Version

Step 1: Right-click on the Avast icon in the system tray and select “Open Avast.”

Step 2: Go to “Menu” and select “Settings.”

Step 3: Navigate to the “General” tab and click on “Update.”

Step 4: Click on “Check for Updates” and follow the on-screen instructions to update Avast to the latest version.

Step 5: Restart your computer and launch League of Legends to see if the block issue is resolved.


Encountering Avast blocking League of Legends can be frustrating, but by following the step-by-step solutions provided in this guide, you can effectively resolve the issue.

Whether it’s temporarily disabling Avast’s firewall, adding League of Legends as an exception, or updating Avast to the latest version, these solutions will help you enjoy uninterrupted gameplay.

Say goodbye to blocking errors and experience the thrill of League of Legends without interruptions.


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