iTunes wont download to Windows 7 professional

Repeated attempts to download iTunes setup is interrupted with "/ C:\Users\Robert\AppData\Local\V2nxWfw.exe.part could not be saved because the source file could not be read"
Same thing happened recently trying to download Norton software and Norton tech support person had to unblock something - administrator setting?
This is a new Lenovo w Windows 7 professional.
I enabled the "built-in administrator account" and tried to download from that account but got same results.

I had that issue and it turned out to be a bug with my anti virus software I was using. You mentioned you use Norton? maybe that's blocking the download.