Windows 7 usb randomly stopped working

ok so i have a big problem. i've been running 7 for some time now, all has been good with no problems what so ever, until last night. my mouse and keyboard stopped functioning, i thought maybe it would pass if i restarted. well that was a big no when i got to the login screen and couldn't type my password. my motherboard has only one working usb port and it's the front, well there's two in the front but one works. now in that i have a hub with my mouse, keyboard, and usually phone plugged in. i've never had any problems with this. i also have a ps2 keyboard plugged in for when i want to boot into ubuntu cause my boot loader screen doesn't like usb neither. now i know my usb works cause i hit f1 to continue and when i get into ubuntu it all works fine. when i login into windows using my ps2 keyboard my usb keyboard and mouse don't even light up. i've also tried system restore to no avail. it seems to say it restored then when i log back in it just says it failed so i don't know whats up with that. i'm not to sure how to fix any peripherals on a computer, via drivers and all that. it's over my head and i can't seem to get this working no matter what i do. the last thing i remember doing before this happened was trying to jailbreak my girlfriends ipod which i just decided to hold off on and never finished. and i know the ports still give out power cause my phone can charge still but i'm not sure why my phone can charge but my keyboard and mouse can't light up. someone pleaseeee help me! thanks in advance