windows/7: installed w/o activation code ?

some guy used his friends version of windows/7 , without using the activation code, installed windows/7 on top of a linux/ or in place of a linux operating system:, installed windows/7, it is up and running; he says he is getting a message from microsoft saying he has 30 days to 'activate' the operating system ? i was going to buy this used gaming desktop, when he told me about this: what is the worst case scenario ? will i have to buy/install windows after this 'grace period ' ? thanks

 

window/7 : legal copy ?

how can i find out if the used desktop gaming computer i'm going to buy has a legal / non-temporary copy of windows/7 on it ? the guy i was going to buy the computer from said he installed windows/7 , using a friends copy and did not use the product/activation key, he said there's a 30-day trial period, now he says he's loaded an unofficial activation code and the warning about the 30-day grace period is gone, that there is no problem now: how can i check to make sure windows/7 won't become disabled at some future date ? thanks

 

Re: window/7 : legal copy ?

You don't know how long that 'fix' will last so don't bother with the machine.

 

Re: window/7 : legal copy ?

That says it all. You can't install the OS on two computers. The fact that he disabled/hacked the activation code, tells you he knows it isn't legal. If it were, he would have activated it - no biggie to do this on a legal install.