Mouse and Keyboard vanish when win7 starts to load
Building new computer. Old hard drive has windows 7 on a hidden partitian. Build complete with new mother board and everything else but the hard drive. As power is turned on both mouse and keyboard (USB) come on but as soon as the windows 7 starts to load both mouse and keyboard go off. Can't click anything to install drivers ect or even reinstal windows 7. Did go into Bios to make sure USB enabled. Put the old hard drive back in the old build and both work fine. Help what else do I try?