What is TmXPFlt?

TmXPFlt.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if TmXPFlt.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for TmXPFlt drivers in need of updating

TmXPFlt.sys file information

The process known as Post Filter For XP or Post Filter For AMD64 belongs to software VSAPI or Tmfilter by Trend Micro (

Description: TmXPFlt.sys is not essential for the Windows OS and causes relatively few problems. The TmXPFlt.sys file is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 205,328 bytes (75% of all occurrences) or 183,808 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. The TmXPFlt.sys file is not a Windows core file. The software has no file description. The file is a Verisign signed file. The file has a digital signature. Therefore the technical security rating is 20% dangerous, however you should also read the user reviews.

Recommended: Identify TmXPFlt.sys related errors

If TmXPFlt.sys is located in a subfolder of "C:\Program Files", the security rating is 24% dangerous. The file size is 265,744 bytes. There is no file information. The program is not visible. The TmXPFlt.sys file is a Verisign signed file. The file has a digital signature. The service has no detailed description. It is not a Windows system file.

Uninstalling this variant: In case of problems with TmXPFlt.sys, you can also do the following:

Important: Some malware disguises itself as TmXPFlt.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the TmXPFlt.sys 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 Inc. Post Filter For XP
tmxpflt.sys is a driver for Trend Micro AntiVirus Engine
TmXPFlt.sys can also legitimately be found as system drive\Program Files\Trend Micro\OfficeScan Client\TmXPFlt.sys -- It is part of the Trend Micro antivirus product, and the enterprise version, especially if distributed with an external package distributor such as Novell's ZenWorks (NetApp), can have sizes near to those quoted above but not exactly those sizes.

Summary: Average user rating of TmXPFlt.sys: based on 3 votes with 3 user comments. 2 users think TmXPFlt.sys is essential for Windows or an installed application. One user thinks it's probably harmless.

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Best practices for resolving TmXPFlt issues

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

TmXPFlt.sys [all]