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Can’t Turn on The Firewall in Avast: 5 Ways to Fix It

Outdated client app may prevent Avast from turning firewall on

4 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

Avast is one of the most popular antivirus software. It has many features that set it above other antivirus software. Nonetheless, it has its share of issues. The common problem is that Avast can’t turn on the firewall.

Users also complain aboutAvast using high CPUon the computer.

Why can’t Avast turn on the firewall?

Why can’t Avast turn on the firewall?

The Avast firewall is not working or turning on for several reasons. However,conflict with Windows Firewallis the most common cause of the problem. So, Avast may run into issues if Windows Firewall is enabled.

Other factors that can be responsible for the Avast firewall not turning on are:

These are some common causes of Avast antivirus not turning on. Fortunately, users can fix the problem by troubleshooting their apps and computers.

What can I do if Avast cannot turn on Firewall?

What can I do if Avast cannot turn on Firewall?

We recommend you go through the following preliminary checks before proceeding with any advanced solution:

If it doesn’t, try the solutions below:

1. Disable Windows Firewall

Disabling the Windows Defender Firewall can fix any conflicts with the service and Avast, allowing Avast Firewall to work.

2. Scan your PC and run the Repair Tool

Performing a Full Virus Scan will find and remove any threats that may cause problems with your computer and Avast.

3. Uninstall and reinstall the Avast antivirus with Utility

The uninstall tool willuninstall the Avast appand clear every residue it can leave on your PC.

4. Update Windows OS

Windows updates will fix bugs on your PC that can cause issues with the Avast antivirus client. Also, read abouthow to fix Windows not connecting to update serviceson your PC.

5. Perform a Clean boot

A clean boot will prevent any third-party app from launching from the start, blocking any interference from the apps. Also, it’lldisable startup appsthat may prompt the error.

Conclusively, you can checkwhat to do if Avast is not updating the virus definitionsfor some reason.

Leave your questions and suggestions in the comments section.

Henderson Jayden Harper

Windows Software Expert

Passionate about technology, Crypto, software, Windows, and everything computer-related, he spends most of his time developing new skills and learning more about the tech world.

He also enjoys gaming, writing, walking his dog, and reading and learning about new cultures. He also enjoys spending private time connecting with nature.

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Henderson Jayden Harper

Windows Software Expert

Passionate about technology, Crypto, software, Windows, and everything computer-related, he spends most of his time developing new skills.