What does the tmPfw.exe file do?
The tmPfw.exe process is also known as Trend Micro Personal Firewall Service or, as the case may be, TmPfw and is a part of Trend Micro Network Security Components or, as the case may be, Trend Micro Client/Server Security Agent. This software is produced by Trend Micro (www.trendmicro.com). An outdated or faulty version of tmPfw.exe can cause problems for your computer, ranging from slowness to error messages like these:
- Trend Micro Personal Firewall service has stopped working. Windows is checking for a solution to the problem... (Windows 11, 10, 7)
- Trend Micro Personal Firewall service has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available. (Windows 11, 10, 7)
- tmPfw.exe has encountered a problem and needs to close.
- Access violation at address FFFFFFFF in module tmPfw.exe. Read of address 00000000.
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What you should know about tmPfw.exe Trend Micro Personal Firewall service
tmPfw.exe is not part of Windows, but it is important nonetheless. The file tmPfw.exe is found in a subdirectory of "C:\Program Files".
Frequently occurring are file sizes such as 497,008 bytes (50% of all these files), 585,789 bytes or, as the case may be, 497,080 bytes.
TmPfw.exe was developed by a so-called third party provider - and not by Microsoft. This tmPfw.exe process does not appear as a visible window, but only in Task Manager. This tmPfw.exe process is receiving or sending data on the LAN (your local network) or on the Internet.
TmPfw.exe is capable of make itself undetectable by other programs, record keystrokes as well as connect to the Internet.
For this reason, 38% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.
If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves tmPfw.exe. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.
What do other computer users say about tmPfw?
modul trend internet secur pc cillin | |
Trend Micro Firewall Control PBall3485 | |
Anti-virus scanner (further information...) Chris Mariam | |
Internet Secruity provided by Pc Cillin 2005 | |
part of the Trend Micro Systems Internet Security Suite (further information...) Shane Meluck |
Summary: 10 users consider tmPfw.exe essential and should not be removed. source: file.net
How to uninstall Trend Micro Network Security Components or Trend Micro Client/Server Security Agent
To remove Trend Micro Personal Firewall service from your computer, please follow the manual instructions below.
- Click the Windows Start Button. You can find it in the lower-left corner of the taskbar.
- Type 'uninstall'.
- Click Add or remove programs.
- Now locate Trend Micro Network Security Components or Trend Micro Client/Server Security Agent in the list of displayed applications.
- Click the program, and then click Uninstall.


How to check if tmPfw.exe (Trend Micro Personal Firewall service) was uninstalled completely
After uninstalling, restart your computer. Then open Windows Explorer and check if a folder with the software name still exists under C:\Program Files. Also, check the Registry for remnants of Trend Micro Personal Firewall service. To do this, start Regedit, then look under HKEY_LOCAL_MACHINE > Software for: Trend Micro Personal Firewall service or the name of the producer. Keep in mind that only a computer professional should delete entries in the Windows Registry directly.
Last but not least
If Windows is not working properly, startup is slow, or tmPfw.exe is causing problems, a good Windows diagnostic tool may help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.
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