WmiPrvSE.exe WMI Provider Host – What is It & Why Causing High CPU Usage?

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The WMI Provider Host (WmiPrvSE.exe) process is an important part of Windows and often runs in the background. It offers other applications on your computer to request information about your system. Normally, this process should not use lots of system resources, but it may use a high CPU if another process on your system is behaving badly.


WMI stands for “Windows Management Instrumentation”. This is a Windows feature that gives a standardized way for software and administrative scripts to request information about the state of your Windows operating system and data on it. WMI Providers give this information, when requested. For instance, software or commands can find information regarding the state of BitLocker drive encryption, see entries from the event log, or request data from installed applications that include a WMI provider. Microsoft has a list of WMI providers included on its site.

This is a mainly useful feature for enterprises that centrally manage PCs, especially as information can be requested via scripts and shown in a standard way in administrative consoles. But, even on a home PC, several software you have installed may request information regarding the system through the WMI interface. Also, you are able to use WMI yourself to discover a variety of useful pieces of information which are not usually exposed in the Windows interface on your own PC.


This issue is able to be caused by either of the following factors.

  • ‎One or more processes using a high number of handles

All the handles are placed in the kernel structure \BaseNamedObjects. The WMIPerfClass provider has to scan this structure once making the performance class which are related to the Job objects. If this structure is bloated due to the high number of handles, so the operation can have high CPU usage. It will take longer than normal. You may expect an impact for this condition once a process is using more than about 40,000 handles. An update which is released in March 2020 for supported operating system versions includes some performance optimization and solve some variants of this problem.

  • ‎One or more processes are running on the system using lots of memory

This will affects the creation of the Process performance classes as the memory area of each running process need to be queried. The memory which is used by the process may be fragmented. This makes the operation more resource intensive. This occurs as WMIPerfClass is also querying “Costly” performance counters.


Solution 1: Run Virus Scan

In some cases, the culprit is a malware or virus. You only need to run your antivirus program to get it solved. If you have not done it yet, you are able to do it right now. If your PC detect any unwanted applications or programs, please delete them completely from your computer, and restart then.

Solution 2: Boot into Safe Mode with Networking

  • On your keyboard, you have to press the Windows logo key and R at the same time. Type msconfig and hit Enter.
  • After that, you have to go to Boot tab. Tick the box for Safe boot, and choose Network option. Do not forget to click Apply and OK to save.
  • Please ensure that you have saved your files and data. Then, you are able to click Restart to enter Safe Mode.
  • When in Safe Mode, you have to press the Windows logo key and X at the same time, and then choose Windows PowerShell (Admin).
  • The next step that you have to do is to type the command: msdt.exe -id MaintenanceDiagnostic. Press Enter. You are going to see a troubleshooting window pop up. Please click Next to let the troubleshooting run. If the troubleshooter detects some issues with your system, please follow the instructions to get it fixed.
  • In the PowerShell window, you need to type the following command: msdt.exe /id PerformanceDiagnostic and press Enter. You are going to see a Performance troubleshooting window pop up. Click the Next button to continue with the troubleshooting.
  • After the troubleshooting process finishes, you are able to boot into normal mood. Please repeat step one, then go to Boot tab and empty the box for Safe boot. Do not forget to click Apply and OK to save and exit. Lastly, restart your computer into normal mode.

Solution 3: Uninstall Components and Drivers Causing the issue.

One of the causes is faulty components and drivers. You are able to uninstall them from your PC:

  • On your keyboard, you have to press the Windows logo key and X at the same time, then choose Event Viewer.
  • After that, click the View button on top and choose Show Analytic and Debug Logs.
  • On the left pane, you have to follow the path: Applications and Service Logs > Microsoft > Windows > WMI Activity > Operational log. Please mark down the latest items listed as Error.
  • On your keyboard, you have to press the Windows logo key and X at the same time, then choose Task Manager.
  • Now, go to Details tab and discover the processes with matching IDs as seen in Event Viewer in PID column. Once you locate such process, you are able to uninstall the program or disable its service as you want.

Solution 4: Restart WMI Provider Host Service

Sometime, the issue with WMI Provider Host Service taking too much of your PC resources. For this case, you are able to restart it by doing these steps:

  • On your keyboard, at the same time, you have to press the Windows logo key and R. Then, type services.msc and hit Enter.
  • After that, you have to Press W key to locate Windows Management Instrument service. Please right click it and choose Restart.
  • Now, you will be able to press Windows key and X, choose Command Prompt.
  • In the Command Prompt window, type some commands and hit Enter after each command.
  • Lastly, you only need to restart your PC after the commands.

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