I had Windows XP installed on my computer. Recently I upgraded it to Windows 7. All is working fine except USB devices (pendrives, etc...) which are not detected. They worked before on Windows XP so I'm sure it's not a hardware problem.
I succesfully installed motherboard drivers. Motherboard is Gigabyte GA-E7AUM-DS2H
Any idea of what could happen and how can I solve it?
The only USB device which seems to work is my mouse.