Using another Windows PC, you can use the HP cloud recovery tool to create a bootable USB recovery drive that will reinstall W10, the drivers and the software that originally came with your notebook. Here is an info link for how to use that utility...
Do not delete or format any partitions. When you get to the part of the installation that asks 'Where do you want to install Windows,' install it on the existing Windows partition and it will create a Windows.old folder.
After W10 has completed installing, you can explore the Windows.old folder, find your old user profile and copy and paste the files you want to save onto a portable hard drive.
Then you can use the HP cloud recovery tool media to factory reset the PC, or you can just install the drivers you need on the plain W10 installation.
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