I have an HP Laptop and it appears the HDD is bad. I'm not quite sure how to install the OS (Win 10) and make it legit. The current HDD has a recovery partition that I'm assuming contains the original OS. I'm not really clear on that, but how do I reinstall the current licensed OS onto a new SSD? I don't see any Windows stickers on the laptop that usually contain the OS serial number. If it did, I know how to install the OS and get things going? Can I find the serial number somewhere within windows?