I just upgraded my old gaming system and one of my laptops to windows 10. I will do a clean install on my rig in sig. Anyone having any issues? And i saw,on Microsoft website that you must update to windows 10 first to transfer your license key from your old version of windows to windows 10. Then you can download windows 10 as an ISO file and do a clean install becasuse your system will be linked to windows 10 from the first upgrade.. there has got to be an easier way. Any thoughts?