Now if you only have a USB keyboard/mouse it might get a little dicey although I'm pretty sure it's still possible, I can't remember the exact process for windows to install hub drivers (whether you have to click through menus or not).
When removing usb host controllers something then like the system file checker or a repair install is then needed to see those back on.
I just did it to 2 different machines no more than 10 minutes ago and it just reloads the drivers, no need to use the file checker or repair install. You just really dont have a clue. Its unbelievable that you think that uninstalling your USB host controller you have to do a (REPAIR INSTALL). I,m out of this one. This is pointless you will say anything!
ouch did that hurt? he brought out the photoshop lol