Did you create recovery discs in Windows 8?
From the HP document, Creating a Recovery Image on Discs or Saving a Recovery Image to a USB Flash Drive (Windows 8), it says:
HP recovery software allows you to make only one recovery
backup . These backup files contain the original operating system,
drivers, and application software that shipped with the computer.
If you created the backup you might be OK. If not, perhaps there's someone out there who can help you better than I.
Thanks,
