What is RegMech.exe?

The genuine RegMech.exe file is a software component of Registry Mechanic by Symantic.
This file runs the 'Registry Mechanic' application, developed by PcTools™. It activates software to repair your Windows OS registry, which helps prevent crashes or dumps and slower operating speeds. PcTools™ was a Symantic® company focused on PC security and performance through applications like performance software, file analysis tools, and registry repair software. The PcTools™ trade mark was eliminated by Symantic® in 2013 in order to streamline their software and make it easier for consumers.

RegMech stands for Registry Mechanic

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 RegMech.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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RegMech.exe file information

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

The process known as Registry Mechanic (version 8.0, 7.0, 9.0, 10.0) belongs to software Registry Mechanic by PC Tools (

Description: RegMech.exe is not essential for the Windows OS and causes relatively few problems. The file RegMech.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 2,828,184 bytes (50% of all occurrences), 2,483,496 bytes and 5 more variants. 
There is an icon for this program on the taskbar next to the clock. The program has a visible window. It is not a Windows system file. The RegMech.exe file is a Verisign signed file. The file is certified by a trustworthy company. RegMech.exe is able to record keyboard and mouse inputs, hide itself, manipulate other programs and monitor applications. Therefore the technical security rating is 4% dangerous, however you should also read the user reviews.

Uninstalling this variant: It is possible to uninstall Registry Mechanic software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7) or search the support area on the Pctools website.

Recommended: Identify RegMech.exe related errors

External information from Paul Collins:

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

Registry cleaner
PcTools Registry Mechanic
  Phillip_2005   (further information)
part of PC Tools - Registry Mechanic v4
Registry Mechanic execute file- ok if you have Registry Mechanic

Summary: Average user rating of RegMech.exe: based on 4 votes with 4 user comments. 4 users think RegMech.exe is essential for Windows or an installed application. One user is not sure about it.

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Best practices for resolving RegMech issues

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

RegMech.exe [all]