I wanted to use some software that was windows 7 specific and I had a spare computer I wanted to install it on. Everything worked fine up to the windows 7 install screen, then I would get no mouse/keyboard inputs. I rebooted the computer and the mouse would work fine on the BIOS screen. I figured it may be tied to a date on the windows 7 installer so I set the date on the bios to 2010 and voila mouse and keyboard on the installer!
Problem: No Mouse/keyboard on the windows 7 installer screen
Fix: set the bios date to 2010