Of course, you can buy the product key from the microsoft official shop, but it's so expensive.
so i suggest you buy it from some online MSDN partner shop, like oggus.com, with cheap price.
my windows 7 product key was bought there. genuine key with fast shipping, now my win7 OS has been activated one year. feel good! hope it can help you!
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Only if you have a product key for the version that you want to downgrade to. You would also have to reinstall windows.
Of course, you can buy the product key from the microsoft official shop, but it's so expensive.
so i suggest you buy it from some online MSDN partner shop, like oggus.com, with cheap price.
my windows 7 product key was bought there. genuine key with fast shipping, now my win7 OS has been activated one year. feel good! hope it can help you!
I CHOOSED http://www.windowspremiumkey.com/
FROM THE SUGGESTION ON TOMSHARDWARE, AND PURCHASED MY WINDOWS 8.1 PRO KEY. IT WORKED WITHOUT ANY PROBLEMS OR ERROR.
THE DOWNLOAD LINK IS FROM MICROSOFT TECHNET, VERY SAFE.
THEIR CUSTOMER SERVICE IS VERY EXCELLENT AND PROMPT.
WILL ORDER 2 MORE ITEMS IN NEXT TWO WEEKS AND RECOMMEND ONLINE.
No, you can't go backwards. Why would you want to?
Why would you want to