You're facing an issue where the HP laptop won't let you install Windows on the hard drive, resulting in an error. Please try restarting the device or checking if the installation media is properly inserted. If the problem persists, consider consulting HP support for further assistance.
Ensure you don’t require details about that drive. Remove all partitions from the drive you’re using (appears to be drive 0) before installing. This should work smoothly. If needed, open Command Prompt and type "shift+f10" to launch DiskPart, then clean the drive.
Are you certain it’s not only the section marked "unallocated space" that remains inaccessible? If so, there’s nothing left to remove. Clear all other partitions to turn the entire drive into unallocated space, then create a new one, and you’ll be able to install.