Where CPU-Z fits
Use it when identifying hardware for troubleshooting or an upgrade discussion.
Check before you choose
Download the correct build and interpret sensor or configuration readings in the context of your machine.
Find the right edition
Start with the destination for your device or the publisher's website. Use the current requirements and terms there to confirm the edition you need.
Compare the workflow
Identify the problem before installing a utility. File search, remote support, hardware inspection and bootable media preparation need different permissions and can affect the computer in different ways.