What is wermgr.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 wermgr.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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Wermgr.exe file information

Windows Task Manager with wermgr
Wermgr.exe process in Windows Task Manager

The process known as Windows Problem Reporting belongs to software Microsoft Windows Operating System by Microsoft (

Description: Wermgr.exe is an important part of Windows, but often causes problems. Wermgr.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 8/7/XP are 53,760 bytes (61% of all occurrences), 61,952 bytes or 56,320 bytes. 
The wermgr.exe file is a Windows system file. The wermgr.exe file is a Microsoft signed file. The program is not visible. Therefore the technical security rating is 7% dangerous; however you should also read the user reviews.

Recommended: Identify wermgr.exe related errors

Important: Some malware disguises itself as wermgr.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the wermgr.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

windows error reprting manager. nothing harmful
When Microsoft really asses up its OSes, they have to write Error Managers to handle the multitude of constant errors produced by their OS. This is that process. Fortunately, like most of Microsofts applications, this one is totally unnecssary. Feel free to turn it off, it will stop trying to find out why your programs have crashed and will stop sending Microsoft bug reports.
wermgr.exe causing 100% CPU on Vista. I've just disabled it in Administrative Tools- Services- Windows Error Reporting Service
keeps coming up on my pc and I cant open any programes cant get rid of it
It is NOT digitally signed
i have the same problem didn't solve it yet.
  jurrian lamm  
I stopped the service and changed it to manual, then removed the error reporting task, but the Wermgr.exe kept running in Vista and using up to 50% of my CPU. I couldn't dlete it from the System32 folder. I rebooted to the Windows repair module and deleted the file. That solved the issue.
It is common system file in Windows 7 but I cannot find if in my Windows XP computer.
  Randy Bell  
Virus scanner said it wanted to adaped some system settings
  Bram   (further information)
I had multiple security services running making this problem. i deleted 2 of em and the problem went away
It is common system file in Windows 7 but not needed, as soon as I stopped it and quarantined it my laptop work fine, I had nothing but problems and errors before removing the offending file.
uses over 50% cpu on vista, stop services : windows error reporting, update and windows module installer
This process was 'terminated by Rkill or while it was running'.
comes up with a message, click ok , goes away
  Muthu Pillay  

Rating chart

Summary: Average user rating of wermgr.exe: based on 17 votes with 14 user comments. One user thinks wermgr.exe is essential for Windows or an installed application. 3 users think it's probably harmless. 6 users think it's neither essential nor dangerous. 6 users suspect danger. One user thinks wermgr.exe is dangerous and recommends removing it. 3 users don't grade wermgr.exe ("not sure about it").

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Best practices for resolving wermgr issues

A clean and tidy computer is the key requirement for avoiding problems with wermgr. 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 doing a repair of your installation, or in the case of Windows 8, 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 wermgr.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

wermgr.exe [all]