Software not available from update server when installing Windows 8.1 on Mavericks I am trying to install Windows 8.1 on OS X Mavericks via Bootcamp. I have a Macbook Pro mid 2010 model.

I'm running Bootcamp assistant 5.1.0 (473).

Unfortunately, I am getting the following error message when the installer tries to download Windows support software:



Any ideas why?
You can try manually updating the software. Here's a link that you can use. Be sure to follow the instructions.