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

You may need to turn off your antivirus program temporarily when installing software that the program blocks, running a file it flags incorrectly, or troubleshooting a problem that the antivirus itself is causing. When you disable antivirus protection, your computer stops scanning incoming files and programs in real time — it becomes more vulnerable to malware during that window, so the goal is to re-enable it as soon as you finish what you need to do.

Most antivirus programs can be disabled in two ways: you can turn off real-time scanning while keeping the program running, or you can close the program entirely. Real-time scanning is the active protection that watches what you download and run. Closing the program removes all active protection but is sometimes necessary when the program itself is interfering with what you are trying to do.

The steps differ depending on which antivirus program you have. The most common ones — Windows Defender (built into Windows), Norton, McAfee, Kaspersky, Bitdefender, and Avast — each have their own interface and menu structure. This guide covers how to find and use the disable option in each.

Key Takeaways

  • Real-time scanning can usually be toggled off from the antivirus program's main window without closing the entire program.
  • Disabling antivirus leaves your computer unprotected, so re-enable it immediately after you finish what you needed to do.
  • If you cannot find the disable option in your program's settings, restarting your computer will often turn the protection back on automatically.
  • Some antivirus programs require administrator permission to disable protection, which means you may need to enter a password or confirm a prompt.
  • If a file is blocked and you believe it is safe, most programs let you add it to an exceptions list instead of disabling the entire antivirus.

How to disable Windows Defender on Windows 10 and 11

Windows Defender is the antivirus program built into Windows. To turn off real-time scanning, open the Windows Security app by typing "Windows Security" into the search box at the bottom left of your screen and pressing Enter. Click "Virus & threat protection" on the left side of the window.

Under "Virus & threat protection settings," click "Manage settings." You will see a toggle switch next to "Real-time protection." Click the toggle to turn it off. Windows will ask you to confirm — click "Yes." The protection is now off. A yellow warning icon will appear in the taskbar to remind you that protection is disabled.

To turn it back on, follow the same steps and click the toggle again. If you restart your computer, Windows Defender will automatically re-enable real-time protection even if you turned it off.

How to disable Norton Antivirus

Open the Norton program by clicking its icon in the taskbar or searching for "Norton" in your Start menu. Once the program window opens, look for a button or menu labeled "Settings" or a gear icon, usually in the upper right corner. Click it.

In the Settings menu, find "Real-Time Scanning" or "Virus Protection" — the exact name varies by Norton version. You will see a toggle or checkbox next to it. Click to turn it off. Norton may ask you how long you want protection disabled — you can usually choose 15 minutes, 30 minutes, 1 hour, or until you restart your computer. Select the time period and confirm.

When the time expires, Norton will automatically re-enable protection. If you want to turn it back on before then, return to Settings and toggle it back on.

How to disable McAfee Total Protection

Click the McAfee icon in your system tray (the small icons on the right side of the taskbar, usually hidden behind an arrow). If you do not see it, search for "McAfee" in your Start menu and open the program. Once the main window is open, look for "Real-Time Scanning" in the protection status area.

Click on "Real-Time Scanning" or the protection status itself. McAfee will show you options to pause or disable protection. Select "Pause" or "Turn Off" depending on what the program offers. You will usually be asked to choose a duration — 15 minutes, 30 minutes, 1 hour, or until restart. Choose your time and confirm.

McAfee will show a countdown timer while protection is paused. When the time runs out, protection resumes automatically. You can also manually re-enable it by clicking the same area and selecting "Resume" or "Turn On."

How to disable Kaspersky, Bitdefender, and Avast

Kaspersky: Open the Kaspersky program and look for "Protection" or "Security" in the left menu. Click it, then find "Real-Time File Protection" or "Virus Protection." Click the toggle or button next to it to disable. Kaspersky will ask you to confirm and may ask how long to keep it off. Select your duration and confirm.

Bitdefender: Open Bitdefender and click the menu icon (three horizontal lines) in the upper left. Go to "Settings," then "Protection." Find "Real-Time Protection" and click the toggle to turn it off. Bitdefender will ask you to confirm the action.

Avast: Open Avast and click the menu icon in the upper left corner. Select "Settings," then "Protection." Find "Real-Time Shields" or "Virus Shield" and click the toggle. Avast will show you options for how long to disable protection — choose your duration and confirm.

All three programs will automatically re-enable protection after the time you selected expires, or when you restart your computer.

What to do if you cannot find the disable option

If you have looked through your antivirus program's settings and cannot find a way to disable real-time scanning, the program may require administrator permission. Look for a button labeled "Run as Administrator" when you open the program, or right-click the program icon and select "Run as Administrator" from the menu. This gives the program permission to make changes to your system, including disabling protection.

If you still cannot find the option, try restarting your computer. When your computer restarts, some antivirus programs temporarily pause protection during the startup process, which may give you the window you need to install or run what you are trying to do. Alternatively, you can add the specific file or program to your antivirus's exceptions or whitelist instead of disabling the entire program — this tells the antivirus to ignore that particular file.

To add an exception, open your antivirus settings and look for "Exceptions," "Whitelist," "Exclusions," or "Trusted Files." Click the option to add a new exception, then browse to the file or folder you want to exclude. The antivirus will no longer block that specific item, but all other protection remains active.

Re-enabling your antivirus after you are done

After you have finished installing the software or running the file you needed, turn your antivirus protection back on immediately. If you set a time limit when you disabled it, protection will resume automatically when that time expires. If you disabled it without a time limit, you must manually turn it back on using the same steps you used to disable it.

Check your taskbar to confirm that your antivirus program is running and protection is active. Windows Defender shows a white checkmark icon when protection is on. Norton, McAfee, Kaspersky, Bitdefender, and Avast all show their program icon in the taskbar when active. If you see a warning icon or a red X, protection is still off — return to your antivirus settings and re-enable it.

Frequently Asked Questions

Can I disable antivirus without opening the program?

Not directly. You must open the antivirus program itself to access the settings that control real-time protection. You can close the program entirely by right-clicking its icon in the taskbar and selecting "Close" or "Exit," but this removes all protection rather than just pausing it. Most programs will restart automatically when you restart your computer.

What happens if I leave antivirus disabled and forget to turn it back on?

Your computer will remain unprotected against malware and viruses until you re-enable it. Most antivirus programs will show a warning notification reminding you that protection is off. If you restart your computer, most programs automatically re-enable protection on startup. Check your taskbar regularly to confirm your antivirus is running.

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

Your antivirus program may have a setting that automatically re-enables protection after a set time, or it may restart when you open certain programs. Check your antivirus settings for an option like "Auto-enable after" or "Resume protection." You can usually adjust this time or turn off the automatic re-enable feature, though some programs do not allow you to disable it permanently.

Is it safe to disable antivirus while browsing the internet?

No. Disabling antivirus while you are online exposes your computer to malware from websites, downloads, and email attachments. Only disable antivirus when you are installing or running something specific that you trust, and re-enable it immediately afterward. Avoid opening web browsers or checking email while protection is off.

Can I disable just one part of my antivirus, like the email scanner, without disabling everything?

Yes. Most antivirus programs let you disable individual features like email scanning, web protection, or file scanning while keeping other protections active. Look in your antivirus settings for options labeled "Email Protection," "Web Shield," or "File Protection." You can usually toggle each one separately, so you can turn off only what is interfering with what you need to do.