I experience similar on a regular basis, but mine isn't connected to installing software.
Mine seems to be a "feature" of the Gigabyte graphics card. Maybe it's a Display Port issue.
When you say your monitor goes black, is Windows still loading up after the reboot?
And if you left Windows to fully boot up again, would the picture finally appear on your monitor, when you the desktop icons appear?
That's what happens to me if I don't switch on my monitor and PC at the same time.
If I start my PC, wait 10 secs and switch on my monitor, I don't see anything on screen, until Windows has fully booted.