This is a genuine Windows 10 Pro installation DVD with license key for one machine.It is a physical tangible DVD that will be sent FREE by first class post to your letterbox. Orders placed before 4 pm will be dispatched today and should be with tomorrow. It is essential to use Darik’s Boot and Nuke disc which is included entirely FREE of charge!. Complete with Installation Booklet. This is very easy for anyone to install but a support phone number will be given also.