I am running an ASUS Laptop less than 6 months old which was fine until apparently I connected a Mr. Worng to it by way of an USB-plug. Mr. Wrong was an old Olympus µ700 pocket camera, where I wanted to get at the images.
After this, none of the USB ports is operating any more. Mouse is not working, external memory the same, though they work on another computer- as they did on this one here prior to Mr. Wrong.
I checked on the hardware manager and this looks a little strange to me (but I do not know much about what is under the hood with computers) and I have to translate from German, so the wording might be not exactly what you have in English:
Hardware manager gives under the heading of 'other devices' two warnings of (1) 'unknown device' and (2) 'USB - Controller', both marked in the icon with a little black exclamationmark on yellow ground. Checking the properties of these units I get the message, that there are no drivers installed for these units. Trying automatic update of drivers failed.
Further down in the hardware.manager there is an entry 'USB-Controller' with the item 'Intel® USB 3.0 eXtensible-Hostcontroller - 0100 (Microsoft' which looks fine with driver information and all that.
I tried system recovery to a point a few days ago, but still my USBs are down.
Any help would be appreciated.