Hi Juan

I have the same error message as Carynne.

”One of the USB devices attached to this computer has malfunctioned, and Windows does not recognize it”

This is a Toshiba laptop, and it effects all USB ports the same way.

The computer was running XP Home originally.

When I plug in a USB mouse I get the error, the mouse doesn’t light up and doesn’t work.

If I plug in a USB Memory stick XP will Freeze and I have to shut down and restart.


I disconnected power and battery to try to reset some memory – it didn’t help.

I have uninstalled the USB drivers several times – they auto install successfully.

I run Regedit and created a USB Key and a DWORD value called DisableSelectiveSuspend, set that value to “1”.

I ran some test program that I found and it says that both Hardware and Software for the USB’s is OK.



I formatted the hard drive and installed XP Professional.

All the same fault.

Finally I upgraded to Vista – and still faulty.

Now the USB Memory doesn’t freeze the computer – just get the same error.