Why you might need to disable Avast, and what happens when you do

You disable Avast antivirus when a program you trust won't run because Avast is blocking it, when you're troubleshooting a problem, or when you've decided to switch to different security software. Disabling Avast means it stops scanning files in real time and stops blocking suspicious downloads — your computer becomes less protected until you turn it back on or uninstall it completely.

The method you use depends on whether you want to pause Avast for a few hours (temporary disable) or remove it entirely (uninstall). Temporary disable is safer if you're not sure whether you need it yet. Uninstall is the right choice if you're replacing it with other antivirus software or if you've decided you don't want it.

Key Takeaways

  • Temporary disable pauses Avast's real-time scanning for a set time period — usually 10 minutes to 1 hour — and is the safest option if you're unsure.
  • You can disable Avast from the system tray icon in the bottom right corner of your screen by right-clicking and selecting "Disable" or "Pause".
  • To uninstall Avast completely, use Windows Settings > Apps > Apps and Features, search for Avast, and select Uninstall.
  • If Avast won't disable or uninstall, restart your computer first — sometimes the program is locked by a running process.
  • After disabling Avast, install replacement antivirus software before connecting to the internet if you want continuous protection.

Temporarily disable Avast from the system tray

The fastest way to pause Avast for a short time is through the system tray icon. Look for the Avast shield icon in the bottom right corner of your taskbar (on Windows) or menu bar (on Mac). Right-click the icon and you'll see options like "Disable" or "Pause" — the exact wording depends on your Avast version.

When you click Disable or Pause, Avast will ask you how long you want it off. Common options are 10 minutes, 1 hour, or until you restart your computer. Choose the shortest time that gives you enough window to run the program you need. When the time expires, Avast turns back on automatically.

If you don't see the Avast icon in your system tray, it may be hidden. On Windows 10 and 11, click the up arrow on the left side of the taskbar to reveal hidden icons, then look for the shield.

Disable Avast through the main program window

Open the Avast application itself by clicking its icon on your desktop or searching for "Avast" in your Start menu. Once the program window opens, look for a menu option labeled "Protection" or "Settings" — this varies by version. Inside that menu, you'll find toggles for different types of scanning: File Shield, Web Shield, Mail Shield, and others.

Click the toggle next to "File Shield" or "Real-Time Protection" to turn it off. This stops Avast from scanning files as you download or open them. You can turn off individual shields (like Mail Shield if you only want to disable email scanning) or disable all of them at once.

Disabling through the main window gives you more control over which parts of Avast you want off, but it doesn't automatically turn back on after a set time — you have to remember to turn it back on manually.

Uninstall Avast completely on Windows

If you've decided you don't want Avast anymore, uninstall it through Windows Settings. Open Settings, go to Apps, then Apps and Features. Scroll down or search for "Avast" in the list. Click on it and select Uninstall.

Windows will ask you to confirm the uninstall. Click Uninstall again. The removal process usually takes a few minutes. When it's done, restart your computer to clear any remaining Avast files from memory.

If the uninstall gets stuck or fails, restart your computer first — sometimes Avast processes are still running in the background and preventing removal. After the restart, try uninstalling again through the same path.

Uninstall Avast on Mac

On a Mac, open Finder and go to Applications. Find Avast in the list, right-click it, and select Move to Trash. Some versions of Avast also leave behind a helper tool that runs in the background even after you delete the main app.

To remove the helper tool, open System Preferences (or System Settings on newer Macs), go to Security & Privacy, and look for any Avast-related items in the list of installed software or login items. Remove any you find. Then empty your Trash to complete the uninstall.

What to do if Avast won't disable or uninstall

If Avast is locked and won't respond to disable or uninstall commands, the most common cause is that Avast processes are still running and preventing changes. Restart your computer — this clears all running programs from memory and usually solves the problem. After the restart, try disabling or uninstalling again.

If restart doesn't work, try uninstalling in Safe Mode. On Windows, restart your computer and press F8 repeatedly as it boots up to enter Safe Mode. In Safe Mode, fewer programs run automatically, which sometimes allows Avast to uninstall. On Mac, restart and hold Shift to enter Safe Mode, then try uninstalling through Applications.

If you still can't remove Avast, download the Avast Uninstall Utility from Avast's website. This tool is designed specifically to force-remove Avast when normal uninstall fails. Download it on a working computer, transfer it to a USB drive, and run it on the computer with the stuck Avast installation.

Protecting your computer after disabling Avast

Once Avast is off, your computer has no real-time malware protection until you turn it back on or install different antivirus software. If you're only disabling Avast temporarily to run a specific program, turn it back on as soon as you're done. If you're uninstalling to switch to different software, install the replacement antivirus before you go online.

Windows 10 and 11 include built-in antivirus called Windows Defender (or Microsoft Defender). If you uninstall Avast without installing anything else, Windows Defender will turn on automatically to provide basic protection. It's not as aggressive as Avast, but it offers a baseline level of scanning.

If you're switching to a different paid antivirus like Norton, McAfee, or Bitdefender, download and install it before you uninstall Avast. This prevents a gap where your computer has no protection at all.

Frequently Asked Questions

Will my computer get infected if I disable Avast for an hour?

Not necessarily. Your risk depends on what you do during that hour. If you're running a program you trust and not downloading files from unknown sources, the risk is low. If you're browsing unfamiliar websites or downloading files, the risk is higher. Disable Avast only as long as you need to, then turn it back on.

Can I disable just one part of Avast, like email scanning?

Yes. Open the Avast main window, go to Protection or Settings, and you'll see individual toggles for File Shield, Web Shield, Mail Shield, and others. Turn off only the one you need to disable. This keeps the rest of Avast running.

What's the difference between disable and uninstall?

Disable pauses Avast temporarily — it stops running but stays installed on your computer and can be turned back on. Uninstall removes Avast completely from your computer. Use disable if you might need Avast again soon; use uninstall if you're switching to different software or don't want it anymore.

Do I need to restart my computer after uninstalling Avast?

Yes, restart after uninstall. This clears Avast processes from memory and ensures any remaining files are cleaned up. Restart is especially important if you're installing a different antivirus right after — some antivirus programs conflict if they're installed while the old one is still partially in memory.

What if I uninstall Avast and then change my mind?

Download Avast again from its official website and install it like you did the first time. You'll need to set up your account and preferences again, but the installation process is straightforward. Make sure you download from avast.com, not from a third-party site.