Q: Unable to download Windows Support Software through BCA

Hello.

I have a new MacBook Air 13in (early 2015) and want to install Windows 8.1 on it. Following the guide, I started the Boot Camp Assistant, plugged USB 2.0 flash drive, checked "Download the latest Windows Support software from Apple" and pressed the Continue button. After that the downloading bar appears and a few seconds later I get the message "Can't install the software because it is not currently available from the Software Update Server".

I tried to do than with other Flash drives and using different internet connections, result is the same.

Any help will be appreciated.