What is WMIsvc.dll?

WMIsvc.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if WMIsvc.dll is a Windows system file or if it belongs to an application that you can trust.

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WMIsvc.dll file information

The process known as WMI belongs to software Windows Management Instrumentation (winmgmt) by Microsoft (

Description: WMIsvc.dll is not essential for the Windows OS and causes relatively few problems. WMIsvc.dll is located in a subfolder of C:\Windows\System32. Known file sizes on Windows 10/8/7/XP are 144,896 bytes (67% of all occurrences), 145,408 bytes or 168,960 bytes. 
The service can be started or stopped from Services in the Control Panel or by other programs. The software has no file description. The program is not visible. It is a Microsoft signed file. It is not a Windows core file. Therefore the technical security rating is 7% dangerous; however you should also read the user reviews.

Recommended: Identify WMIsvc.dll related errors

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

WMIsvc.dll is REQUIRED by the Windows Management Instrumentation (winmgmt) service which provides a common interface and object model to access management information about the operating system, devices, applications and services. If this service is stopped, most Windows-based software will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start. The Windows Management Instrumentation (winmgmt) service is REQUIRED by the Internet Connection Sharing (ICS) service, IP Helper service, Network Connectivity Assistant service, and the Windows Security Center service. Describing WMIsvc.dll as "not essential for the Windows OS" is beyond idiotic, it's outright stupid and irresponsible.
  Kyle Brandt  

Summary: Average user rating of WMIsvc.dll: based on 1 vote with 1 user comment. One user thinks WMIsvc.dll is essential for Windows or an installed application.

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Best practices for resolving WMIsvc issues

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

WMIsvc.dll [all]