hmmm, I downloaded NXT just yesterday on my other laptop and did not have this problem. Did you download it here: https://nxt.org/download/ ?
Maybe try it again. If it fails again, you can join the community at slack https://nxtchat.herokuapp.com/ . There is always someone from the community or the team online who can help you.
Yes I did do it from the site that you mention. It keeps coming back with the same thing. I contacted support and have to send them a screen shot. Haven't gotten around to that yet, but will. (I'm just too lazy to restart download again and wait for the error lol). But if that fails, I will try your suggestion. Thanks again.