The Recovery process might take 1-2 hours if you are doing it from the hard drive and might take more time if you are doing it from the disks. Please try the procedure in the following weblink step by step to restore the system to factory settings.
| HP PCs - Performing an HP SystemRecovery (Windows8) |
| If you are using the Windows 8 operating system on your HP or Compaq PC, learn how to restore the original software. |