Why you might need to disable your antivirus

You may need to turn off your antivirus temporarily when installing software that the program incorrectly flags as a threat, when troubleshooting a technical problem, or when your antivirus is slowing down your computer during a specific task. Most antivirus programs block legitimate software by mistake, especially older programs or tools from smaller developers.

The key word is temporarily. Disabling antivirus protection leaves your computer vulnerable, so you should turn it back on as soon as you finish what you need to do. Never leave your antivirus off for hours or days.

Key Takeaways

  • Most antivirus programs have a "disable" or "pause protection" option in their main window that turns off the program for a set time, usually 15 minutes to 1 hour.
  • If you cannot find the disable option in the program itself, restart your computer in Safe Mode, which loads Windows without antivirus running, then restart normally when done.
  • Some antivirus programs require you to uninstall and reinstall them rather than offering a simple disable option, which takes longer but works the same way.
  • Always turn your antivirus back on immediately after you finish the task that required it to be off.

Disabling antivirus in Windows Defender (built-in)

Windows Defender is the antivirus program that comes with Windows 10 and Windows 11. To turn it off temporarily, open the Windows Security app by typing "Windows Security" into your search bar and pressing Enter.

Once Windows Security opens, click Virus & threat protection on the left side. Then click Manage settings under "Virus & threat protection settings." You will see a toggle switch next to Real-time protection. Click it once to turn it off. Windows will ask you to confirm — click Yes. Your antivirus is now disabled.

Windows Defender will turn itself back on automatically after a short time, usually within 15 minutes to 1 hour. If you want to turn it back on sooner, return to the same screen and click the toggle again.

Disabling third-party antivirus programs

If you use Norton, McAfee, Kaspersky, Bitdefender, Avast, or another antivirus program you installed yourself, look for a Disable, Pause, or Turn off button in the program's main window. The exact location varies by program, but it is usually near the top or in a menu labeled Settings or Protection.

Click that button and the program will ask how long you want protection disabled — common options are 15 minutes, 30 minutes, 1 hour, or until you restart your computer. Choose the shortest time that gives you enough time to finish your task. When the time runs out, the antivirus turns back on automatically.

If your antivirus program does not have a disable button, you can uninstall it temporarily. Go to Settings > Apps > Apps & features (on Windows 11) or Control Panel > Programs > Programs and Features (on Windows 10). Find your antivirus in the list, click it, and click Uninstall. After you finish your task, reinstall the program using the installer file or by downloading it again from the company's website.

Using Safe Mode to disable antivirus

If you cannot find a disable option in your antivirus program, you can restart your computer in Safe Mode. Safe Mode is a Windows startup option that loads only the essential programs your computer needs to run — antivirus programs do not load in Safe Mode.

To enter Safe Mode on Windows 10 or 11, hold down the Shift key and click the power button in the bottom right corner of your screen. Click Restart while still holding Shift. Your computer will restart and show a blue screen with options. Click Troubleshoot, then Advanced options, then Startup Settings, then Restart. When your computer restarts again, you will see a list of startup options. Press the number 4 or F4 to start Safe Mode.

Once in Safe Mode, your antivirus will not be running. Do what you need to do, then restart your computer normally by clicking the power button and selecting Restart. Your antivirus will load again when Windows starts up.

What to do if your antivirus blocks a program you trust

Before you disable your antivirus, consider whether the program you are trying to install is actually safe. If you downloaded it from the official website of a well-known company, it is almost certainly safe. If you downloaded it from a third-party website or a link someone sent you, the antivirus may be right to block it.

Many antivirus programs let you add a program to a whitelist or exclusion list, which tells the antivirus to stop blocking that specific file. This is safer than disabling the entire antivirus. Look for a Settings or Exceptions option in your antivirus program and add the file or folder path there. The antivirus will then ignore that file while protecting everything else on your computer.

Turning your antivirus back on

After you finish the task that required your antivirus to be off, turn it back on immediately. If you used the disable button, your antivirus will turn back on automatically after the time you selected runs out. If you restarted in Safe Mode, your antivirus will load automatically when you restart your computer normally.

If you uninstalled your antivirus program, reinstall it right away. Download the installer from the company's official website, run it, and follow the on-screen instructions. Do not wait — your computer is unprotected while the antivirus is not installed.

Frequently Asked Questions

Will disabling my antivirus for 30 minutes put my computer at risk?

A short time with antivirus off carries low risk if you are not downloading files or visiting untrusted websites during that window. The danger increases if you are actively using the internet or opening email attachments. Disable your antivirus only for the specific task you need to do, then turn it back on immediately.

What if my antivirus program does not have a disable option?

Uninstall it temporarily using Settings > Apps > Apps & features on Windows 11, or Control Panel > Programs and Features on Windows 10. Find your antivirus, click it, and click Uninstall. Reinstall it after you finish your task by downloading the installer from the company's website.

Can I disable Windows Defender permanently?

You can, but it is not recommended. To disable it permanently, open Group Policy Editor by typing "gpedit.msc" into your search bar (Windows Pro and Enterprise only), navigate to Computer Configuration > Administrative Templates > Windows Defender, and set Turn off Windows Defender to Enabled. On Windows Home, you cannot disable it permanently through settings.

Why does my antivirus keep turning back on after I disable it?

Windows is designed to re-enable Windows Defender if no other antivirus is running, because an unprotected computer is a security risk. If a third-party antivirus keeps turning back on, the program may have a setting that prevents manual disabling. Check the program's settings for an option to allow temporary disabling, or use Safe Mode instead.