What is TMBMSRV.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 TMBMSRV.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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TMBMSRV.exe file information

Windows Task Manager with TMBMSRV
TMBMSRV.exe process in Windows Task Manager

The process known as Manages the Trend Micro unauthorized change prevention feature belongs to software Trend Micro Internet Security or AEGIS or Trend Micro AEGIS or Trend Micro Unauthorized Change Prevention Service or Manages the Trend Micro unauthorized change prevention feature or Trend Micro AntiVirus by Trend Micro (

Description: TMBMSRV.exe is not essential for the Windows OS and causes relatively few problems. The TMBMSRV.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 333,064 bytes (25% of all occurrences), 341,256 bytes and 6 more variants. 
The program has no file description. The program has no visible window. The file is not a Windows system file. The file is a Verisign signed file. TMBMSRV.exe is certified by a trustworthy company. TMBMSRV.exe is able to monitor applications. Therefore the technical security rating is 34% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you are having problems with TMBMSRV.exe, you might want to uninstall the software Trend Micro Internet Security or using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program).

Recommended: Identify TMBMSRV.exe related errors

Important: Some malware camouflages itself as TMBMSRV.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the TMBMSRV.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

Trend Micro VirenScanner Office Scan Prozess
Absolutely essential for Trend Micro's Security Software
  Steven L. Edwards   (further information)
It hogs 25% of my CPU according to Task Manager in Windows XP
  Adam S  
essential for Windows [Trend Micro]
Trend Micro Manager Server process. Background service installed by the Trend Micro security products (Antivirus, Internet Security, Firewall) and whose role is to monitor any unauthorized attempt by a virus or other malware, to tamper with any of the Trend Micro programs and files in order to compromise your PC and open a door through the security of your PC.
  Thomas   (further information)
essential for Trend Micro
It is a colossal processing overhead, taking CPU useage to 100% for extended periods of time
  Annoyed, Frinton on Sea  
Great security feature - hogs so much of the processor that nothing can get in.
very annoying, and periodically make PC bussy , as do something important
  Kadir Kampung  
Part of Trend Micro Office Suite, so is required for that antivirus.

Rating chart

Summary: Average user rating of TMBMSRV.exe: based on 9 votes with 10 user comments. 6 users think TMBMSRV.exe is essential for Windows or an installed application. 2 users think it's probably harmless. One user thinks TMBMSRV.exe is dangerous and recommends removing it. 3 users don't grade TMBMSRV.exe ("not sure about it").

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Best practices for resolving TMBMSRV issues

A clean and tidy computer is the key requirement for avoiding problems with TMBMSRV. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the TMBMSRV.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

TMBMSRV.exe [all]