Please note that the monitor should not affect at all during the driver installation. Please try installing the monitor driver first and then install the graphics driver.
If issue persists, post here your dxdiag report, graphics report and system information report. How to get it?
Dxdiag Report: Type dxdiag in Start Menu> open> Save> Attach using Advanced Editor Options.
System Information: Click Start> Type System Information> Click File> Export> Save File> Attach using Advanced Editor Options.
Graphics Report: Right click on desktop> Graphics Properties> Options> Drop Down Menu> Information Center> Save> Attach using Advanced Editor Options.
Attached what you requested. It shouldn't matter, but it does and fails at the same point each time. Can you send the path of where the driver install logs would be?
I also need instructions on where to get the system information in your second step below - that doesn't seem to apply to windows 8.1.