Hello, this is Emily.
It sounds like the reset image is corrupted or missing.. hence no reset option.
Yes, you can absolutely do a clean install using the installation flash drive. If Windows came with your HP device, you don't have to worry about license. It is OEM license and it can be picked up automatically during the installation proces. It usually won't even prompt you for license key.
To perform a clean installation of Windows 10 using the Windows Media Creation Tool:
The following steps should be done on a working Windows computer:
Download the Windows Media Creation Tool from Microsoft's official website. https://www.microsoft.com/en-us/software-downlo...
Run the tool and select "Create installation media for another PC."
Choose your language, edition, and architecture (32 or 64-bit) and select "Next."
Choose "USB flash drive" as the media to use for the installation and select "Next."
Connect a USB flash drive with at least 8 GB of free space to your computer.
Select the USB flash drive you want to use, and then select "Next."
The tool will then download the required files and create the installation media.
=====================================================
Now these steps will be done on your problematic computer:
Go to the computer's BIOS boot menu to have it boot from the USB drive.
Follow the on-screen instructions to install Windows 10, making sure to choose "Custom install" and select the option to delete all existing partitions.
Once the installation is complete, you'll have a clean installation of Windows 10 on your computer.