Change product key

I see an option to change the product key in the properties page. What is the purpose of this?

In case you have a pirated version of your OS. Instead of having to reinstall a genuine version you just buy a product key from MS and change it.

Thank you.

Voted best thread ever.

Captain Zero said:

Voted best thread ever.

i second

is 'leaked' the same as 'pirated'? not by definition, by legal standings

holo88 said:

i second

is 'leaked' the same as 'pirated'? not by definition, by legal standings

Oh no, leaked is very different. Piracy is performed by shady men standing on street corners, with burnt copies of your favourite software under their trenchcoats. For ten dollars you can get a copy of Vista with the DVD printed in one colour and several crucial files missing.

Leaks are well, leaked, by computer enthusiasts who genuinely love their computers and software and want to share that love with everyone. They're heroes, I tells ya, heroes.