"murph399" <murph399@discussions.microsoft.com> wrote in message
news:22270050-582E-43EE-839B-609E35F63C14@microsoft.com...
> switched on today and webcam and memory sticks not working. Info bubble
> says
> "usb device malfunctioned, and windows does not recognise it" Device
> manager
> says "unknown device". Have have tried uninstalling and then reinstalling
> but same thing happens. HELP!! been at it for about 2 hours now. printer
> and
> bluetooth dongle seem to work ok, but nothing else.

You could try disabling and then enabling the USB ports in device manager.