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How to uninstall Avast Antivirus

On Windows 10 and 11, antivirus software can be uninstalled much like any other program, but there are a few extra steps and precautions to help keep your PC safe.

In the modern Windows era, dedicated uninstallation tools are largely a thing of the past. So to uninstall Avast Free Antivirus or Avast Premium Security on Windows 10 or Windows 11, you’ll usually just need to use the Add/Remove Programs interface.

However, like most real-time antivirus software, Avast, as well as Windows, will double-check to make sure that it’s really you who issued the uninstall command. This is because some malware tried to disable or remove any antivirus software it finds, so as to better get a foothold on your system.

In case you’re switching to a different antivirus suite, Avast also offers a Passive Mode, which can also be enabled via its settings. This hands back system-wide real-time malware defence to Microsoft Defender (or a third-party suite, should you install one), but keeps Avast around as an exclusive on-demand malware scanner so you have an extra detection engine to check suspicious files with.

And just in case anything goes wrong, Avast provides avastclear, an emergency tool that can fully remove the remnant of failed or unresponsive uninstallations of Avast.

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What we used

  • Any Windows 10 or 11 computer with Avast installed

The Short version

  1. Open the Windows Settings menu
  2. Go to Apps & features
  3. Search for Avast
  4. Click Uninstall
  5. Confirm uninstallation
  6. Confirm with User Account Control
  7. Uninstall (or enable passive mode)
  8. Confirm with Avast
  9. Skip (or fill) the survey
  10. Reboot
  11. Make sure Microsoft Defender has taken over
  1. Step
    1

    Open the Windows Settings menu

    Open the start menu and click Settings.open Windows' settings

  2. Step
    2

    Go to Apps & features

    Scroll down and select Apps.Select App from the Settings screen

  3. Step
    3

    Search for Avast

    In the Apps & features search bar, type Avast. Multiple Avast products may appear if you have more than one installed.Search for Avast in Apps

  4. Step
    4

    Click Uninstall

    Find the product you wish to remove – Avast Free Antivirus in my example, and click the Uninstall button below it.click uninstall

  5. Step
    5

    Confirm uninstallation

    A small pop-up will inform you that “This app and its related info will be uninstalled.” Click Uninstall in the pop-upconfirm that you wish to uninstall in settings

  6. Step
    6

    Confirm with User Account Control

    User Account Control (UAC), which helps to protect you from software that tries to make unwanted changes to your system, will ask you to confirm that you wish to allow the Avast Antivirus Uninstaller to make changes to your advice. Click Yes.Confirm uninstallation with User Account Control

  7. Step
    7

    Uninstall (or enable passive mode)

    Avast’s uninstaller will now open. Click the Uninstall button to remove Avast. You can alternatively switch Avast to Passive Mode, which will put Microsoft Defender back in charge of real-time malware defence, but keep Avast installed for on-demand scanning.Choose to uninstall Avast or put it in passive mode

  8. Step
    8

    Confirm with Avast

    Avast’s malware defences are sensitive to uninstallation attempts, as some viruses try to remove any antivirus software you have installed. We’re doing this for real, though, so click Yes here. If you don’t do so within 60 seconds, you’ll be taken back to the Avast uninstaller.confirm to Avast that you wish to uninstall it

  9. Step
    9

    Skip (or fill in) the survey

    Avast will now remove itself and prompt you to fill in an uninstallation survey. Feel free to click Skip the survey in small print at the bottom. You can’t cancel uninstallation at this point.The Avast uninstallation survey is optional

  10. Step
    10

    Reboot

    The uninstaller will notify you when it’s finished. Click Restart computer to reboot and complete file removal.Restart your computer

  11. Step
    11

    Make sure Microsoft Defender has taken over

    The final step in antivirus installation on Windows is to ensure that you’re now protected by the OS’s built-in defences. Type Windows Security into the search box on the taskbar, click on the Windows Security app, then the Virus & threat protection tab. Your Virus & threat protection settings should say “No action needed”.Check that Microsoft Defender is active

If Microsoft Defender hasn’t activated when you reboot, or if parts of Avast – that aren’t stand-alone tools such as Avast SecureLine VPN – are still present, then you may need to turn to Avast’s emergency uninstallation clean-up tool and follow our guide to repairing a broken Avast uninstallation.

Kaspersky Anti-Virus

Kaspersky Anti-Virus

Essential Virus Protection

Our 5-star rated anti-virus blocks malware and viruses in real time and stops hackers, now 50% off at just £12.49

  • Kaspersky
  • Was £24.99
  • £12.49 per year
View Offer

Troubleshooting

What is Avast Passive Mode?

This will put Microsoft Defender back in charge of real-time malware defence, but keep Avast installed for on-demand scanning.

Do I need to immediately replace Avast?

No, Microsoft Defender provides entire adequate protection against malware.

Some Avast programs are still installed

Avast has a wide range of security software, much of which exists independently of the main antivirus suite. If you want to remove Avast Secure Browser or SecureLine VPN, just search for them in Windows’ Apps settings and click uninstall.

The Avast directory is still there!

Reboot your PC and this should be removed. If an empty directory remains after this, you can safely delete it. If other traces of the software remain, follow my guide to running avastclear.

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