Rubenaasheim :
lp231 :
Windows 8 license can't be lost, it's embedded into the bios, when Win 8 is installed it automatically reads the key and activates.
The laptop was bought with windows but it isn't saved license
What are you talking about "saved license"?
Previous OSes from Windows 7 and before, the license is a 25 digit/alphabet key sticker label that is placed on the bottom of a laptop.
With Windows 8, there is no more license sticker. The license is actually written into the laptop itself. When you install the correct version of Windows 8, the installation will read the license key from inside the laptop, and if it's correct it will automatically activate.