Avast Virus Definitions Won’t Update: Why & How to Fix

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Updated onOctober 4, 2023

updated onOctober 4, 2023

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Avast is a popular antivirus solution and to keep the latest malware and adware out of your system, the virus definition updates automatically. However, several users reported theVirus definitions are not up to dateerror.

The full error reads:

Virus definitions are not up to date – release date was invalid date

This error can occur due to several reasons including corrupted installation files, a glitch in the antivirus solution or even some Windows issues.

If you are also troubled by this error, here are a few troubleshooting steps to help you resolve the Avast Antivirus not updating problem on yourWindows 10PC.

What can I do if Avast virus definition update failed?

1. Reinstall Avast

Reinstalling Avast may not be an ideal solution, but you probably have to do it anyway if the built-in repair function fails to repair the software.

In some instances, you may also want to install an older version of the software until the bugs in the latest version are fixed.

⇒Get back Avast Free Antivirus

2. Manually update Avast

2.1 Update Avast from the settings

2.1 Update Avast from the Setup screen

Make sure to confirm your Avast definition version by going to the Avast website to see if you have the latest version installed.

3. Repair the Avast installation

3.1 Repair avast from the Troubleshooting menu

3.2 Repair avast from Control Panel

The repair process can take some time. Once the scan is complete, go through the issues, and click onResolve to fix the problem.

Once the fixes are applied, reboot the computer and relaunch Avast to see if the issue is resolved. This solution can actually fix most Avast problems so try it.

The Avast virus definition update failed issue can occur due to several reasons. However, Avast offers a built-in repair tool to fix common Avast issues.

If the issue persists, uninstall and reinstall the software to fix the problem. If the problem persists, consider choosing abetter antivirus with unlimited licensethat you don’t need to renew.

Did you manage to fix Avast using our solutions? Do you have any other ideas? Share them in a comment below to help other users in the process.

Avast Virus Definitions Won’t Update: Why & How to Fix#

What can I do if Avast virus definition update failed?#

1. Reinstall Avast#

2. Manually update Avast#

3. Repair the Avast installation#

Avast Virus Definitions Won’t Update: Why & How to Fix

What can I do if Avast virus definition update failed?

1. Reinstall Avast

2. Manually update Avast

3. Repair the Avast installation