recently tried to reinstall windows 8 pro on new hard drive..now i get error message everytime..windows was not able to be installed reverting to your old copy...the disc is a genuine bought one with serial key and all..but it just will not reinstall..it gives no reason why it wont install.wtf this appears to be a common problem with a lot of microsoft programs..upgrade and it doesnt work,download updates and it crashes..might be time to go to linux or something more reliable than micorsoft.they had many years to get things right and still they fail badly