What is mwssvc.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 mwssvc.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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Mwssvc.exe file information

Windows Task Manager with mwssvc
Mwssvc.exe process in Windows Task Manager

The process known as My Web Search Bar belongs to software My Web Search Bar or My Web Search Service by (

Description: Mwssvc.exe is not essential for Windows and will often cause problems. Mwssvc.exe is located in a subfolder of "C:\Program Files (x86)"—normally C:\Program Files (x86)\MyWebSearch\bar\2.bin\. Known file sizes on Windows 10/8/7/XP are 28,762 bytes (75% of all occurrences) or 34,320 bytes. 
The program is not visible. Mwssvc.exe is not a Windows core file. Therefore the technical security rating is 37% dangerous; however you should also read the user reviews.

Uninstalling this variant: In case of problems with mwssvc.exe, you can do the following:

Recommended: Identify mwssvc.exe related errors

Important: Some malware camouflages itself as mwssvc.exe. Therefore, you should check the mwssvc.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

It's bundled with the package.. part of the toolbar. Spybot Search and Destroy's teatimer intercepted the file as a potential threat. "Spybot-Search and Destroy has encountered and terminated a process that is listed as part of a malicous software".
  Jack   (further information)

Summary: Average user rating of mwssvc.exe: based on 2 votes with 1 user comment. One user thinks it's neither essential nor dangerous. One user thinks mwssvc.exe is dangerous and recommends removing it. One user is not sure about it.

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Best practices for resolving mwssvc issues

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

mwssvc.exe [all]