Where to buy cheap windows 7 home premeuim product key?

[iijakex]

I bought a windows 7 dvd off of a friend and the product key is "invalid" so what is a good place online where i can buy a cheap product key for windows 7 home premium? Thanks

 

[USAFRet]

I bought a windows 7 dvd off of a friend and the product key is "invalid" so what is a good place online where i can buy a cheap product key for windows 7 home premium? Thanks

Amazon, Newegg, Microcenter.
There is no 'cheap'. It costs what it costs. About $80-$100.

 

[iijakex]

Man that's unfortunate, but thanks for the information

 

[USAFRet]

Man that's unfortunate, but thanks for the information

"I bought a windows 7 dvd off of a friend and the product key is "invalid" so what is a good place online where i can buy a cheap product key for windows 7 home premium? Thanks "

Change the text slightly:
"I bought some RAM off of a friend and it didn't work so what is a good place online where i can buy some cheap RAM? Thanks "

Same thing. It costs what it costs.