Question about Microsoft Natural Ergonomic 4000

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Not Recognized The keyboard is no longer recognized as a USB keyboard, so when it is plugged in, it simply does nothing. I have tried using a USB/PS2 keyboard adapter, but that did not solve the problem either.

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Re: Not Recognized

The problem is with the keyboard or the computer. Plug the keyboard into a different computer and see if you get the same result. If you don't have another computer, call a friend or family member. If it is not the keyboard, then try a different USB port on your computer, that particular port might have been damaged.
It could also be a simple fix of delete and reinstall the drivers for your USB controller under windows.

Before attempting this next step, make sure you have the drivers for your CPU mother board. You most likely will not need them, but just to be safe. I would always download the up-to-date version from the website of who ever made your computer.

Go to the start button, and click on "Run", not type "devmgmt.msc" and click the "OK" button. Now, the device manager should be visible. Now click the "+" symbol next to the words "Universal Serial Bus controllers". This will expand the device tree. Now Delete or Uninstall the bad USB controller, not sure which one is the bad one, uninstall them all. Now goto the "Action" menu and click "Scan for Hardware changes".

Posted on Nov 09, 2007

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I am trying to use my Dell keyboard with my Toshiba laptop through a PS2 to a USB adapter. The message is that the USB is not recognized.

I would believe that it could be the Ps2/USB adapter is broken. From personal experience I have never found a Ps2 to usb adapter not to work. I used it for multiple devices on both ends (using it on Ps3 with a PS2 keyboard or mouse, for example).

It's also the dell keyboard is defunct.

Mar 29, 2011 | Dell SK8110 Keyboard

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My Acer KU 0760 keyboard is not working at all. Seem as if the computer doesn't recognize it at all. The mouse works in the USB ports, but nothing from the keyboard. Had old gatway keyboard laying...

Try the keyboard in the USB port you've been using for your mouse. Just move your mouse to a different USB port. I know, this seems like a "too simple" solution, but USB ports sometime get cranky.
A question I would have would be: have you been using a PS2-type keyboard prior to trying to use the Acer USB one? Sometimes the BIOS needs the item "use USB port for keyboard" turned on.
Good luck!

Oct 26, 2010 | Acer NSK8458AN Keyboard

1 Answer

GE Wireless "Malfunction" "Unknown Device"

Does the mouse and/or keyboard have a "connect" button on the bottom of either? Try restarting your PC, then, if you have installed new batteries, and the mouse/keyboard is still not connected, try the "Connect" button if any.

Jan 01, 2010 | GE Wireless Optical Mouse

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I have come across this before and it turned out to be a bad ps2 port on the main board. I just used a cheap usb keyboard and never worried about it.

Sep 14, 2009 | Harma HK810-360 MOUSE & KEYBOARD BUNDLE...

1 Answer

My keyboard wont work

if its a ps2 kb you prob just killed it by plugging it into a computer with power on. if usb than its ok to do that. if its not lighting up than its dead. get another kb

Sep 03, 2009 | Keyboards & Mice

4 Answers

How do i connect my PS2 with my PC

on the back of your computer box, you will (probably) find 2 ports that look like this. the PS2 mouse will be plugged into the green colored port. NOTE: PS2 mice (and keyboards) will only fit into the port ONE DIRECTION, so don't force it! make sure to line it up

once plugged in, you will need to reboot your computer, as PS2 can only be recognized while the computer is starting up.


one final note: some of the newest computers DO NOT have PS2 ports. if this is true of your computer, you will need to get a new mouse, or an adapter, like the one shown below:b6b70e7.jpg

Aug 27, 2009 | KEIO PS2 Optical Scroll Mouse

1 Answer

Logitech Mouse ''USB Device not recognized''

try using a usb powered usb hub usualy fixes incompatibiliy issues.

Aug 24, 2009 | Keyboards & Mice

1 Answer

Logitech V220 Receiver not seen by Vista, but is seen by XP

I left the computer powered off for about an hour and when I rebooted (which I had done in previous attempts to solve the problem) the problem seems to have corrected itself. I plugged the receiver back into the same USB port and it was immediately recognized.
However, I remain skeptical that the problem is permanently solved based on the variety of issues listed with the V220 mouse and receiver.

Apr 29, 2009 | Logitech V220 Mouse

1 Answer

Attach HP PS2 Keyboard to Dell Laptop

hmm, Interesting
Because the Laptops mostly do not have the PS2 Port,
if you are using the converters connecting the USB to the PS2.
then It may be the junction related issue.
so find a USB mouse and connect it directly or try with another Converter.
that should work.

Jul 15, 2008 | Keyboards & Mice

1 Answer

Office depot ativa keyboard and windows 2000

If your keyboard is the most basic as you state then surely Windows 2000 should have the drivers for this keyboard in it's Windows Cab files.If however there is a problem with the keyboard it best to go to Device Manager and see what Win 2000 is complaining about.It may also be that you have used a PS2 keyboard before -this will bring about that Win2000 will be looking for the old Keyboard and ignore the USB one. In device manager klick on keyboards-in the dropdown right click on your keyboard-click uninstall.Let windows then uninstall the keyboard and restart with your USB board connected.Windows should pick it up and install.Regards

Jun 19, 2008 | Keyboards & Mice

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