I have an HP Omen. I reformatted the Windows drive and partitioned the disk. I want to use the Windows 10 product key, just the key, that must be on the HP recovery USB stick. Once I have the key I will validate the new Windows 10 installation with it. How would I go about this?
You're doing a NEW OS install in this system?
If so, you do not need the license key.
Install, skipping where it asks for the OS license.
This system will activate itself once it links to the activation server farm at the mothership.
And if you're doing this via the HP recovery disk, same. Just run it, and it will activate itself.
For an OEM system, there is no "license key" you enter.