Get the new and improved Windows 10 when you upgrade to Windows 10 Pro. You'll soon discover that Windows 10 Pro/Home is familiar to Windows 7 users, but a more personalized experience that takes everything you already love about Win7 and Win 8.1 to the next level.
You will not be able to upgrade if you do not have a genuine version of Windows 7/8. But you buy a valid Window 10 product key (like: DPH2V-TTNVB-4X9Q3-TJR4H-KHJW4) on cheap to activate the full and premium Windows 10.
Windows 10 delivers an even better Start Menu, expanding the possibilities and bringing over your favorite apps and pins so they're easily accessible. Not only does it make multitasking easier than ever, it also integrates well with software and hardware you already have, allowing you to stay productive whenever you need to get to work. Specifically, you can view up to four apps and all open tasks at one time.