I am not sure what we can suggest possible solutions without knowing what you have already tried. We could just be repeating things that you have tried and did not work.
If your laptop did not come with a recovery partition (possibly hidden) on the hard drive, the only way to get it to full, fresh from the factory condition is to use factory-supplied recovery discs for that model. They would be the only ones that would include any pre-installed software that came with the laptop. Retail versions of MS-Windows would only have the basic Windows operating system and generic drivers to get enough usability from the hardware so that one can then install hardware-specific drivers from other sources.
