What is cmtray.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 cmtray.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.

Click to Run a Free Scan for cmtray.exe related errors

Cmtray.exe file information

Windows Task Manager with cmtray
Cmtray.exe process in Windows Task Manager

The process known as Content Manager (Release) or Clean Master belongs to software Content Manager or Content Manager Tray or Clean Master For PC by MiTAC Digital or Kingsoft (

Description: Cmtray.exe is not essential for Windows and will often cause problems. The cmtray.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 468,328 bytes (25% of all occurrences), 439,296 bytes and 5 more variants. 
The file is not a Windows system file. The program is not visible. The software starts upon Windows startup (see Registry key: MACHINE\Run, Run). Cmtray.exe is able to connect to the Internet and monitor applications. Therefore the technical security rating is 44% dangerous, however you should also read the user reviews.

Uninstalling this variant: In the event of any problems with cmtray.exe, you can do the following:
  • ask the software vendor, [1][2], for advice
  • safely remove the program using the uninstall program of Clean Master or ContentManager (Control Panel ⇒ Uninstall a Program)

Recommended: Identify cmtray.exe related errors

Important: Some malware camouflages itself as cmtray.exe. Therefore, you should check the cmtray.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.


User Comments

May be Magellen's content manager.
On my PC it's Magellen Content Manager.

Summary: Average user rating of cmtray.exe: based on 1 vote with 2 user comments. One user thinks it's neither essential nor dangerous. One user is not sure about it.

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Best practices for resolving cmtray issues

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

cmtray.exe [all]