jarotech :
Why do you want to change to Windows 7 ?
Hello, unfortunately win 8 was thought the general public, forgot that the factories need to communicate with machines, the Win8 does not communicate nor authorizes! On the other hand the company that gives me work just has updated the general system for win7, but also gives some problems! the evolution of Microsoft should take into account very important factors with regard to hardware. In my opinion, the construction of computers should also have this behavior, keeping the old WIN XP, which is the best so far.
best regards