"First , for what reason You want to reinstall the PC - if You have some problems with viruses , slow performance etc. if You make backup image and use it , You just copy the problems to the new machine. In this situation I reccomend a fresh install."
The way to do, is after spending hours / days installing OS including all updates, programs,drivers and any other misc goodies and checking the whole thing does what you want THEN you make an image. Label it properly, store it away on a seperate drive and hope you can find it when all else has failed.
Also a good idea to make and keep a series of 3 current copies (make new delete old) but keep your original one. Someday you may be very thankful.
Art.