I have a Dell Inspiron 5523 that I changed disk to SSD and deleted all recovery drives etc. Now I want to reinstall on the new disk to Windows 8.1. Single Language but it does not accept my product key which is the Pro Pack key and not the original OS from factory settings (did not note down the key when bought it).
Underneath the laptop there is no sticker showing the product key for Windows so how do I install it? I have service tags etc for the laptop any help?