What’s AAct.exe? Should I remove it or not?

by Aleksandar Ognjanovic
Aleksandar Ognjanovic
Aleksandar Ognjanovic
Troubleshooting Expert
Aleksandar's main passion is technology. With a solid writing background, he is determined to bring the bleeding edge to the common user. With a keen eye, he always... read more
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An advanced user can easily make a distinction between a rogue process and a regular system process. Less experienced users usually find out about them when it’s too late.

However, the process we’ll be talking about today is there on users own accord. It’s the part of the KMS Activation suit and it’s, you guess, illegal.

If you’re bothered with it working in the background, check the explanation below and find out how to remove it for good.

What’s AAct.exe anyway?

If you had any fears that this process is a malicious one, you were completely right. Although, it’s negative effects aren’t as obvious at first, the AAct.exe process is a part of the KMS activator used to obtain an illegal license for Windows 10. This, on its own, is something we couldn’t advise. Even though it looks simple to avoid the KMS (Key Managing Services) and not spend a dime on the legal license, chances are your cracked system won’t work as intended.

The said process will run in the background only when whitelisted, as antimalware applications (Windows Defender included) should prevent it from running. However, if it’s still active, make sure to disable it as it will, eventually, lead to larger infection or completely destabilize the system.

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We don’t condone pirating software, but disabling AAct.exe might lead to losing the licensing, so have that in mind as well. In general, KMS only works with a certain iteration of Windows 10. Hence, don’t expect, say, a Creators Update KMS Activator to work on the latest iteration of Windows 10.

Should I remove AAct.exe from my computer?

If this .exe file is causing various technical issues, then yes, you should remove it.

Steps to remove AAct.exe

Now, if it’s already there and you’ve seen some negative effects it has on performance, remove it immediately. Firstly, we’ll need you to uninstall KMS Activator if you’ve decided to install it.

The next step would be to scan for malware and remove all possible threats remaining. Have in mind that this applies only if your system is still fully functional.

If not, there’s hardly anything you can do but start from a scratch. And, the next time, in order to avoid AAct.exe, consider legally purchasing Windows 10.

Here’s how to remove the KMS Activator from Windows 10:

  1. In the Windows Search bar, type Control.
  2. Open the Control Panel.
  3. Choose Uninstall a program.
  4. Uninstall the KMS Activator application and restart your PC.

And this is how to scan for malware with Windows Defender (you can use any third-party antivirus as well):

  1. Open Windows Defender from the taskbar notification area.
  2. Choose Virus & threat protection.
  3. Choose Scan options.
  4. Select Windows Defender Offline Scan.
  5. Save everything you’re doing as this mode will restart the PC.
  6. Click Scan now.scan with windows defender

After that, you shouldn’t see the said process on your PC anymore. The easiest way to check is the Task Manager.

With that being said, we can conclude this article. Don’t forget to tell us about your issues with the AAct.exe process and how you deal it in the comments section below.


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