Visual Studio 2015 installer hangs during install?

Question

I downloaded the full ISO for Visual Studio Ultimate CTP 6. The installation program got to about the 90% mark, gauging by the progress bar, and just stuck there. There wa

Answer 1

Alright so after hours of googling and failed attempts at solving this including many of the suggestions above, I found a solution I tried on a whim and worked for me.

Attempt to install the program, then, when it gets "stuck", cancel it, but don't uninstall.

Then, go to the control panel, go to programs, go and attempt to uninstall it, select "Repair" instead of Uninstall.

"Repairing" Visual Studio appears to have completely worked and was very quick, under 5 minutes and everything seems to work fine.