How to Turn Off Antimalware Service Executable on Windows 11

Turning off the Antimalware Service Executable in Windows 11 can give your PC a bit of a boost, especially if it’s feeling a bit sluggish. It’s part of Windows Defender, which is meant to keep you safe, but sometimes it’s a bit over the top, gobbling up CPU and RAM. To turn it off, you’ll need to tweak some settings in the Group Policy Editor or the registry—just be careful not to muck up anything important. Because, of course, Windows makes it a pain in the backside to turn off its built-in security.

How to Turn Off Antimalware Service Executable in Windows 11

Before you jump in, just know that these steps will disable real-time protection on Windows Defender. That’s what stops the Antimalware Service Executable from running flat out. Heads up: if you do this, your PC might be a tad more vulnerable, so consider installing a third-party antivirus or at least making sure you’ve got some other security measures in place.

Step 1: Open the Run box

Hit Windows key + R. Too easy, right? This little box is your shortcut to all sorts of system tweaks.

Step 2: Type in “gpedit.msc”

Type gpedit.msc into the Run box and press Enter. This opens the Group Policy Editor, where Windows hides loads of settings. (Note: On some Windows 11 Home setups, this won’t work unless you enable Group Policy manually or use a workaround.)

Step 3: Find Windows Defender

Follow this path: Computer Configuration > Administrative Templates > Windows Components > Microsoft Defender Antivirus. This is where Windows Defender’s options are kept.

Step 4: Turn off Real-Time Protection

Double-click on “Turn off real-time protection”. Select “Enabled”. What this does is tell Windows to stop actively scanning files, which should help free up CPU and RAM. Apparently, this stops the Antimalware Service Executable from running in the background.

Step 5: Hit Apply and OK

Click Apply then OK. Close the Group Policy window. You might need to restart or log out and back in for the change to kick in, but sometimes it’s instant or takes a couple of goes.

Once done, Windows Defender’s real-time scanning should be pretty much off. Your system should run a bit snappier, especially if Defender was slowing things down before. Just remember—by doing this, your PC won’t be constantly scanning, so it’s a trade-off: more speed but less protection. Sometimes Windows resets these settings after a reboot, so keep an eye on it.

Tips for Turning Off Antimalware Service Executable in Windows 11

  • Keep your system updated—security patches are still important even with Defender off.
  • Think about installing a third-party antivirus like Bitdefender or Kaspersky. They’re usually pretty lightweight and won’t hog your resources.
  • Run manual scans now and then—just to make sure everything’s sweet.
  • Stay mindful of what you’re downloading and browsing since your safety net is off.
  • Back up your important stuff before messing around with system settings, just in case.

FAQs

What does Antimalware Service Executable do?

It’s part of Windows Defender, acting like a watchdog for malware in real time. It scans files when they’re opened or downloaded.

Is it safe to turn off Antimalware Service Executable?

Not 100%, unless you’ve got another security setup. Turning it off can leave your PC open to nasties, but sometimes it’s the only way to give your machine some breathing room if it’s real slow.

Can I turn it back on?

Absolutely. Just reverse the steps—set “Turn off real-time protection” back to “Not Configured” or Disabled.

Will my PC be faster without it?

Most likely, especially if Defender was gobbling up resources. But keep in mind, with it off, your PC won’t be actively protected, so it’s a bit of a trade-off.

Do I need another antivirus if I turn off Windows Defender?

Definitely. It’s a bit risky without protection—consider a solid third-party antivirus, especially if you browse the web heaps or download files often.

Summary

  • Open the Run box (Windows key + R).
  • Type gpedit.msc.
  • Navigate to Windows Defender Antivirus.
  • Set “Turn off real-time protection” to “Enabled”.
  • Apply your changes and restart if you need to.

Hopefully that helps someone shave a bit off the lag. Just remember to do it responsibly—your security’s still important. Good luck!