Hi:
If you are running the HP recovery manager to create recovery media, the recovery media you are trying to create would be for W8.
Since you previously upgraded your PC to W10, you can clean install W10 for free at any time by using the Media Creation Tool at the link below.
You can create a USB installation media flash drive (you will need an 8 GB flash drive for this).
https://www.microsoft.com/en-us/software-download/windows10
If you are asked to enter a product key during the installation, check the 'Skip' box, and W10 will install and automatically activate once you are connected to the internet.
Then you can install the drivers and available software from your notebook's support page.
https://support.hp.com/us-en/product/HP-15-Notebook-PC-series/6875200/model/7174336