Hello, I recently bought a new HDD because the old had some corrupted files and some of the areas stopped working. Since i have an Ultrabook laptop and can not insert CD, I have to download an Windows 8 ISO file and put on USB and install it from there. After installing the Windows from USB, my question is does the Pre-Installed key that came with my laptop still works? Are there any other ways? Please let know. Thank you very much.