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Microsoft SQL Server 2022 process: 'SQL Server Windows NT - 64 Bit' keep CPU on 100% usage

Victor Savinescu 0 Reputation points
2025-08-22T10:15:58.3766667+00:00

I have installed on my computer an instance of Microsoft SQL Server version 2022.
The process: SQL Server Windows NT - 64 Bit keeps my CPU usage to 100% all the time even is nothing running on the server.
What can I do to trace what is wrong with this unusualy high CPU usage?
And how to fix it?

SQL Server Database Engine
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  1. Alberto Morillo 34,926 Reputation points MVP Volunteer Moderator
    2025-08-22T19:26:58.89+00:00

    Could you please try to install the latest cumulative update for SQL Server 2022? Please download it from here. Try that first before further investigation. That may fix the issue.

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  2. Erland Sommarskog 124.9K Reputation points MVP Volunteer Moderator
    2025-08-22T20:45:59.9433333+00:00

    Making sure that you have the most recent CU as Alberto says, is certainly a good idea. Check what SELECT @@version returns.

    Then again, since installing the CU will stop and start SQL Server, this may cause problem go away just because of that.

    If you are the more curious sort of person, you may want to some monitoring. Three options:

    • Activity Monitor in SQL Server Management Studio.
    • My stored procedure beta_lockinfo which will show you active processes.
    • The stored procedure sp_WhoIsActive, originally by Adam Machanic.

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