how to check weather my OS is upgraded or installed

how to check weather my OS is upgraded or installed

example :

if upgraded win 8 to win 8.1,

how does I can find out it is upgraded form 8 to 8.1

If 8.1 installed directly how can I find its an fresh installation

Thanks & Regards,

NTRao

July 20th, 2015 3:22am

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