I bought a HP laptop with Windows 8.1 pre-installed but then I installed Linux on it used it for some time. But Now I want Windows 8.1 (activated) back on my laptop.
I read somewhere that I can have it back as long as I use the same version of Windows 8.1 and there is some option when asked for product key something like reinstalling or something.
Is that true? Can I do something like that?