sure go ahead use a key generator and two days later when u cant log into any of ur accounts on the eg email etc then u will finally realise that u have been infected by a virus and then u will be thinking why didnt i just purchase a legit key.
Oh is that the scar tactic you been using lately?

Only an idiot would get infected that easily, and cracked/pirated software is likely to last longer than your "Legit" keys, since Microsoft will blacklist them as soon as they find out you're reselling them illegally.
Your pitch will only work as long as your buyers are as much an idiot as you are.