USB Device not recognised

Hewlett-packard / Hp pavilion dv9700 notebo...
July 15, 2012 at 14:35:35
Specs: Windows Vista Home Premium SP1, 1.6 GHz / 2942 MB
I am using a USB to PS/2 cable to connect an external keyboard and mouse to a USB port on my laptop.
On connecting the cable to the USB port I get an error message as-
USB device not recognised.
One of the USB devices attached to this computer has malfunctioned and windows does not recognise it.
The keyboard and mouse are new and I was able to use them properly. This error started around 15 days back.
I tried to do a uninstall of USB controllers in the device manager portal and rescanned my system for hardware change to reinstal them

I am not a tech guy... Any help will be highly appreciated.


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#1
July 15, 2012 at 14:46:08
Try turning off your computer for a while and remove the power plug from the power outlet. This should remove any leftover capacitance or currents in the motherboard.

P ≠ NP


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#2
July 16, 2012 at 03:43:29
Dude375 >>> Appreciate your suggestion.
I tried the same that you advised yet the problem remains.
If I connect the mouse directly to the usb port it works perfectly fine but it wont work if I connect it via the usb- PS2 cable.
It was working perfect 10 days ago...

On thinking back if I made any system changes .. the only thing I did was run Revo Uninstaller to remove registry key leftovers for Apple iTunes that I had uninstalled.

Could this problem be due to registry changes that might have occured unintentionally ...?


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#3
July 16, 2012 at 12:07:29
I don't think that's the problem. Try booting into Safe mode by pressing F8 when booting up. When you see the Windows Advanced Options menu, choose "Last Known Good Configuration".

P ≠ NP


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