I have this weird thing going, was hoping someone might have a clue.
I have a user with an ASUS u50vg laptop. She uses a wireless Logitech mouse [ m305 if I'm not mistaken ]. One day, the USB port she was plugging the receiver into stopped working. As in - it stopped working as a 'mouse port' - other hardware [ such as memory sticks ] would work just fine.
Today - it happened to the rest of the ports. When I plug that mouse [ or any other mouse, for that matter ], Win7 installs the driver, but recognizes the mouse as USB Composite Device, and it is not being added to the Mice and other pointing devices group.
I am quite stumped. I tried booting the PC with a live CD - the mouse works just fine. I've attempted to remove all ghost devices, reinstall USB controllers and reinstall the chipset - all to no avail. Scanned w/ Malwarebytes - nothing found.