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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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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Posted on Jan 02, 2017

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1 Answer

Keyboard doesn't work after boot


Try booting up with the ps2 keyboard.Once in Win 8.1, unplug ps2 and plug in usb keyboard. See if windows will recognize the usb keyboard and if so it should install software and drivers

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Have a dell latitude D620 that is password protected in such a way as to prevent even the F2 and F12 keys to function. Can you supply a way around this please


You may have a USB keyboard that is not recognized by the BIOS on powerup, but is later recognized by Windows when that starts running. Try connecting a keyboard with a PS2 connector, enter F2 on startup and set the BIOS to enable USB devices in BIOS. If this still doesn't work, then keep a PS2 keyboard around in case you ever need to activate F2 or F12.

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Toshiba aspire boots normally but moving the cursor or any key and the screen goes dark.


Try using a PS2 mouse and PS2 keyboard. It may be that your USB ports have lost their setup (assuming that you are using USB or wireless mouse and keyboard). If the PS2 hardware works fine, check that your USB ports are enabled in the BIOS, then check your device drivers in Windows to see that the USB hardware is recognized.

Oct 12, 2013 | Computers & Internet

1 Answer

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

1 Answer

My keyboard and my mouse for my Acer Aspire 8550 are unresponsive. I have tried rebooting the PC, but to no success. It is only a few months old. I can attached my PS2 USB Mouse to the PC, but nothing...


Hi, this might help you:

This is not so easy, and depends on how skilled you are in configuring pc's, but here i go:

go to Control panel> system>system properties> device manager

in this screen you can find information about stuff like what devices are recognized by your pc.

try and seek wether your ps2 devices are recognized an if so, if the system can control them to.

if not it might also be your usb ports or similar ports that aren't decently controled and por recognized by your pc, so make sure they work fien to by trying other devices on the same ports.

I hope this is useful, and greets.

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1 Answer

KEYBOARD IS NOT RECOGNIZED


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

External keyboard doesn`t work


hiiii ther
how r u ??
1st i don't recomand teh vista to ur machine
it's not VERY comabtble even acer co. say it's ok
ur problem it could be one of two reasons
1 the adapter is makeing a conflict
2 the vista not recognizeing the USB device
so 1st try to make sure that the vista recognize USBs device
than try to change the adaptor
if u need any further assistance email me
u take care and have fun
salammmmmm {bye in arabic }
p.s rate me thanks

Nov 20, 2008 | Acer Aspire 7720 Notebook

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 | Computers & Internet

1 Answer

Pleomax 6gb USB Drive No Longer Recognized by My Computers


It's either the USB port, the drive electronics itself, or the USB cable.

First I'd try a different USB cable.

Apr 06, 2008 | Computers & Internet

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