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.

Click to Run a Free Scan for wermgr.exe related errors

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 10/8/7/XP are 53,760 bytes (77% of all occurrences), 137,344 bytes and 6 more variants. 
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 4% dangerous; however you should also read the user reviews.

Uninstalling this variant: If you encounter difficulties with wermgr.exe, you can do the following:
  1) uninstall Microsoft Windows software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7)
  2) use the software publisher's support site.

Recommended: Identify wermgr.exe related errors

If wermgr.exe is located in a subfolder of "C:\Program Files", the security rating is 68% dangerous. The file size is 6,786,560 bytes. It is not a Windows system file. The process starts upon Windows startup (see Registry key: MACHINE\Run). The program has no visible window. Wermgr.exe is able to record keyboard and mouse inputs and monitor applications.

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  
had same problem - it started using ~50% of my processor load. After little research with ProcessExplorer, i found out that it is crashing because of Philips MediaServer that I installed few days ago. Uninstalling MediaServer fixed the problem. It had problems with MediaServer Crash reporting... but since it is a important part of windows then everyone should first try to figure out why it is acting like that, in most cases some other new application is casing problems because it has been build in wrong way :)
How to stop wermgr.exe file.
Scanner designed to search and identify unidentified malware.
  Stephen Cohn  
I have about 18 wermgr.exe apps running simultaneously, and as I try to end the processes they pop up again. My computer has ground to a halt. Turning the app off in Admin tools generates an error message, and tells me to contact my system administrator. I thought I WAS the system administrator. Bottom line, I cant turn it off....
wermgr.exe causes trustedinstaller.exe to use all ofthe available memory causing the computer to blue screen and restart
  Bert van Raalte  
Pointless and interfering process, which starts and restarts constantly when it decides it is going to flare up. Only changeable via Administrative Tools, worthwhile stopping it altogether as does nothing.
Wermgr installed, or gained a lot more authority, with "update" KB3080149. Uninstall this update and all the excessive wermgr activity will stop. You will then have to hide the update so it wont install again.
  michael wolk  
It's annoying, it keeps running in the background then the window I'm working in loses focus for a few seconds.
It's eating Gigabytes of Bandwidth. It closes when there's no internet connection and relaunches when I'm busy looking else where.
Uploading data, using all of my bandwidth.
  William East  
it will try to collect the errors from "Windows Error Reporting" to be later send to the Microsoft teams by uploading the errors (not your personal files). They will then use the error listings from that upload to try to fix the cause (Hopefully).
  F.Andrew   (further information)
Win 7 Pro - multiple wermgr.exe processes running in task manager. Takes up 30% of 16 GRAM, and 65% CPU on ASUS i7 3300.

Rating chart

Summary: Average user rating of wermgr.exe: based on 37 votes with 26 user comments. 6 users think wermgr.exe is essential for Windows or an installed application. 5 users think it's probably harmless. 12 users think it's neither essential nor dangerous. 12 users suspect danger. 2 users think wermgr.exe is dangerous and recommend removing it. 4 users don't grade wermgr.exe ("not sure about it").

Do you have additional information?
What do you know about wermgr.exe:
How would you rate it:
Link for more info:
Your Name:

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 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 wermgr.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

wermgr.exe [all]