" You must not download an ISO of Windows either if you do not own a corresponding license, even though Windows is protected by license key and online activation."
Actually, you can download an ISO of Windows 7 if you don't own the license. As you mention shortly thereafter, this would allow you to run the trial period.
Also, at this point we are assuming that the warning about piracy was taken into account and the OP does have a license. We have ignored the question of why he does not simply contact tech support if he does have a license. The torrent in question has been vouched for as un-cracked. Since we don't do investigations here, we have to take that at face value.
This thread is now closed.