What is complmgr.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 complmgr.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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Complmgr.exe file information

Windows Task Manager with complmgr
Complmgr.exe process in Windows Task Manager

The process known as Windows COM+ Manager appears to belong to software unknown by EP-Service.

Description: Complmgr.exe is not essential for the Windows OS and causes relatively few problems. The complmgr.exe file is located in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 312,832 bytes (37% of all occurrences), 526,848 bytes, 527,360 bytes or 369,152 bytes. 
There is no file information. The program is not visible. Complmgr.exe is not a Windows system file. The software listens for or sends data on open ports to a LAN or the Internet. The software starts upon Windows startup (see Registry key: Run). Complmgr.exe is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 71% dangerous.

Recommended: Identify complmgr.exe related errors

If complmgr.exe is located in a subfolder of "C:\Program Files", the security rating is 54% dangerous. The file size is 365,568 bytes. There is no information about the author of the file. The program has no visible window. The program is loaded during the Windows boot process (see Registry key: Run). The complmgr.exe file is not a Windows system file. Complmgr.exe is able to record keyboard and mouse inputs and monitor applications.

Important: Some malware also uses the file name complmgr.exe, for example Trojan:Win32/Delf.JD or TrojanDownloader:Win32/Scar.B (detected by Microsoft), and Trojan.Win32.Scar.crkt or Trojan.Win32.Scar.bueu (detected by Kaspersky). Therefore, you should check the complmgr.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 complmgr issues

A clean and tidy computer is the key requirement for avoiding problems with complmgr. 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 complmgr.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

complmgr.exe [all]