Windows 10 VM showing 100% CPU utilization always

Partha Sinha 6 Reputation points


I am running Windows 10 Pro Standard_B2ms and small application is running over there. System is slow and continuously showing 100% CPU utilization whereas I have different VM with same configuration running same application working fine

Checked few things but it is not working.

Windows 10
Windows 10
A Microsoft operating system that runs on personal computers and tablets.
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Azure Virtual Machines
Azure Virtual Machines
An Azure service that is used to provision Windows and Linux virtual machines.
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  1. Sean Liming 4,501 Reputation points

    Use Task Manager to check to see if there is anything running in the back ground of the VM. i.e. Windows Update or Windows Search taking up CPU and memory.

    What do you have set up for the number of Cores and Memory?

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  2. Sumarigo-MSFT 42,516 Reputation points Microsoft Employee

    @Partha Sinha Welcome to Microsoft Q&A Forum, Thank you for posting your query here!

    Performance issues occur in different operating systems or applications, and every issue requires a unique approach to troubleshoot. Most of these issues revolve around CPU, Memory, Networking, and input/output (I/O) as key locations where the issue occurs. Each of these areas generates different symptoms (sometimes simultaneously) and requires a different diagnosis and solution.

    This article discusses high-CPU usage issues that occur on Azure Virtual Machines (VMs) that run the Windows operating system.

    Troubleshoot Azure virtual machine performance on Linux or Windows

    This looks more of a Windows OS specific issue than Azure, to isolate the issue you may try the following suggestions:

    I understand that the PerfInsights has taken more than 3 hrs, if it generates the log, you may analyse the logs as outlined in the KB article How to use PerfInsights to diagnose high CPU or disk usage issues and further isolate the issue.

    Troubleshoot High CPU usage by the "System" process

    Please let us know if you have any further queries. I’m happy to assist you further.


    Please do not forget to 156449-screenshot-2021-12-10-121802.pngand “up-vote” wherever the information provided helps you, this can be beneficial to other community members.

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