I don't use pirated versions of Windows so I don't know the answer to this but I would assume it's a bad idea because:
Your trusting a .ISO image from a random website, how do you know there is not time bombed malware pre-installed?
Do you still have access to Windows update? If so for how long, I assume it can't be difficult for Microsoft to figure out who is using it illegitimately since some versions must be using either the same keys or keys that have never been issued to a copy of Windows that they have sold?
Your trusting a .ISO image from a random website, how do you know there is not time bombed malware pre-installed?
Do you still have access to Windows update? If so for how long, I assume it can't be difficult for Microsoft to figure out who is using it illegitimately since some versions must be using either the same keys or keys that have never been issued to a copy of Windows that they have sold?