i have a HP pavilion & just upgraded to windows 8.1,installed a new video card, 4Gs of memory & a 600 w power supply. i have been trying to learn all the new windows stuff. the upgrade is only about 21 1/2 months old & little by little i have been losing my usb inputs. i have a wireless mouse & keyboard & have switched out the "receiver", i guess that's what it's called, with my game controller. the front 2 went out, switched to the back & now they have quit. i have tried to start in safe mode & tried to start up with my os in but nothing works. i have no input. i don't have any idea whether it's hardware or software related. anyone got any suggestions?
thanks for any help;
jrmadbear
thanks for any help;
jrmadbear