If you are using Configuration Manager and you want to create a collection of all devices that do not have the Configuration Manager Client installed, then you can use this WQL query:
where SMS_R_System.Client is null
If you have any questions or feedback about this post, or if you would like us to create any queries for you, please go ahead and leave us a message below in the comments section and we will get back to you as quick as we can.
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