What is Activator.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the Activator.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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Activator.exe file information

The process known as TeamViewer belongs to software TeamViewer or Executeable by TeamViewer GmbH ( or CrackHeadTM.

Description: Activator.exe is not essential for the Windows OS and causes relatively few problems. The file Activator.exe is located in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 827,392 bytes (50% of all occurrences) or 8,710,615 bytes. 
The program has no visible window. It is not a Windows system file. Therefore the technical security rating is 67% dangerous.

Recommended: Identify Activator.exe related errors

If Activator.exe is located in a subfolder of "C:\Program Files", the security rating is 32% dangerous. The file size is 1,016,367 bytes. The program has a visible window. The process starts when Windows starts (see Registry key: Run, MACHINE\Run). It is not a Windows system file. Activator.exe is able to manipulate other programs.

Important: Some malware also uses the file name Activator.exe, for example VirTool:MSIL/Injector.gen!A (detected by Microsoft), and Trojan-Dropper.MSIL.Agent.ghv (detected by Kaspersky). Therefore, you should check the Activator.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


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Best practices for resolving Activator issues

A clean and tidy computer is the key requirement for avoiding problems with Activator. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the Activator.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

Activator.exe [all]