Bootcamp say's "Can’t download the software because of a network problem."

I was trying to install Bootcamp, all I did was use a new, 32GB flash drive(which was actually 30.8), I plugged it in and installed Bootcamp, Windows 10. It took a while so I left the room and when I got back it said it was done. I restarted the computer and I guess I held the option button too late, and I thought that maybe I could try again, so I cleared the flash drive to try again, there were two folders and one file and I deleted them. When I tried Bootcamp again it kept getting stuck at about 25% and the said "Can’t download the software because of a network problem." And I tried multiple times, but I kept getting the same output. I restarted my computer tried again, and it kept happening. I restarted my computer again and held down the option key, and it worked, but nothing was new. I think my problem is that I deleted the files in the flash drive but there were more files that weren't installed on the flash drive. I made a backup before, but it didn't have enough space, so it didn't do a full backup, and I just really want to know if I messed everything up, or if there is a way to fix this.