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Disconnects Often when i restart my computer, the keyboard and/or the mouse to not work and i am forced to turn off my computer, unplug them from the back, plug them back in, and then restart..... is there something that is wrong that could be causing this problem?

Posted by Jamie Milbus on

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It's the old problem of drivers not loading when the system boots for the wireless keyboard reciever. There isn't anything you can do apart from try using a different usb port as the system allocates the IRQ's to the hardware and if it gets an IRQ of more than 3 or 4 this is where the problem starts, it needs to be IRQ1 (Interupt request No.1)which means that usb port is given first priority for operation.

Posted on Jan 31, 2007

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I have a Dell PC and I unplugged the mouse and the keyboard temporarily to clean it. When I plugged them both back into the tower and turned on the computer, neither one worked. I tried to restart, shut...

To try to resolve the issue:
1.) Will a different keyboard and mouse work (PS2 is the name of these connections)
If they will, damage to the keyboard and mouse is likely)
2.) Will a usb mouse and keyboard work?
If they do, then the problem is with the controller on the mobo, unlikley but MAY have been casued by static.

If the USB keyboard and mouse do not work, you have some problems with the motherboard

Try switching off and unplugging the computer, remove the coin shaped BIOS battery and plug in the keyboard and mouse, wait 2 minutes or so and put the battery back, replug in and power on, see if the bios detects the keyboard and mouse (you will see the bios screen flash up a message). If the computer does nOT detect the keyboard and mouse it will (or should) flash a message on the screen saying "no PS2 keyboard or mouse detected".

If this fails to detect the mouse and keyboard and you get no message or beeps, then there may be damage to the connector ports.

If you can get a USB keyboard and mouse to work, use them, Effecting a repair to the motherboard will not be a viable option
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The Mouse and Keyboard are frozen and will not work. Pressed unlock mouse button but did not respond. What do I do?

Restart by pressing the Start button and keep pressing until it shuts down. Then restart.

Here is more on this subject:
http://www.computing.net/answers/windows-xp/hp-pavilion-is-frozen/162636.html
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How to unlock the key pad on a dell latitude D600 laptop

Hi. Please do troubleshooting steps below:

1. Check to be sure your "Number Lock" or "Function Lock" keys aren't lit. These can lock out certain parts of your keyboard. If either of these is lit, press them to unlock the locked portion of your keyboard. These can be found at the top right on a laptop and between the number pad and main keys on a desktop keyboard.

2. Save all open programs using your mouse. Use your mouse to restart your computer. This will only work if your computer isn't frozen. If your mouse doesn't move, press the power button on your Dell until the computer turns off. Press it again to restart. If the issue was lack of memory or a locked program, this will unlock your keyboard. Continue to Step 3 if the keyboard is still locked.

3. Shut down your computer using your mouse or power button. Don't restart. Unplug your Dell.

4. Remove the battery if you're using a laptop by turning the laptop over and sliding the battery release latch. Slide the battery out and replace after one minute.

Have a good one!


  • Step 2 Save all open programs using your mouse. Use your mouse to restart your computer. This will only work if your computer isn't frozen. If your mouse doesn't move, press the power button on your Dell until the computer turns off. Press it again to restart. If the issue was lack of memory or a locked program, this will unlock your keyboard. Continue to Step 3 if the keyboard is still locked.
  • Step 3 Shut down your computer using your mouse or power button. Don't restart. Unplug your Dell.
  • Step 4 Remove the battery if you're using a laptop by turning the laptop over and sliding the battery release latch. Slide the battery out and replace after one minute.

  • Read more: How to Unlock a Dell Keyboard | eHow.com http://www.ehow.com/how_5063232_unlock-dell-keyboard.html#ixzz0uguUk4bZ
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    Dear Sir,

    plz folow this step to unlock keyboard

    1. Step 1 Check to be sure your "Number Lock" or "Function Lock" keys aren't lit. These can lock out certain parts of your keyboard. If either of these is lit, press them to unlock the locked portion of your keyboard. These can be found at the top right on a laptop and between the number pad and main keys on a desktop keyboard.
    2. Step 2 Save all open programs using your mouse. Use your mouse to restart your computer. This will only work if your computer isn't frozen. If your mouse doesn't move, press the power button on your Dell until the computer turns off. Press it again to restart. If the issue was lack of memory or a locked program, this will unlock your keyboard. Continue to Step 3 if the keyboard is still locked.
    3. Step 3 Shut down your computer using your mouse or power button. Don't restart. Unplug your Dell.
    4. Step 4 Remove the battery if you're using a laptop by turning the laptop over and sliding the battery release latch. Slide the battery out and replace after one minute.
      For desktops, disconnect the keyboard from the desktop. Reconnect after one or two minutes.
    5. Step 5 Reconnect the power adapter or AC cord. Start your computer.
    6. Step 6 If your keyboard is still locked on a Dell desktop, disconnect the keyboard. Restart your computer and reconnect the keyboard after the system boots. Allow your operating system to recognize and reinstall the keyboard.
    Thanks For Your Time,
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    Dell keyboard locked up

    Dear Sir,

    PLzz folow this step to unlock your keyboard

    Step 1 Check to be sure your "Number Lock" or "Function Lock" keys aren't lit. These can lock out certain parts of your keyboard. If either of these is lit, press them to unlock the locked portion of your keyboard. These can be found at the top right on a laptop and between the number pad and main keys on a desktop keyboard.
  • Step 2 Save all open programs using your mouse. Use your mouse to restart your computer. This will only work if your computer isn't frozen. If your mouse doesn't move, press the power button on your Dell until the computer turns off. Press it again to restart. If the issue was lack of memory or a locked program, this will unlock your keyboard. Continue to Step 3 if the keyboard is still locked.
  • Step 3 Shut down your computer using your mouse or power button. Don't restart. Unplug your Dell.
  • Step 4 Remove the battery if you're using a laptop by turning the laptop over and sliding the battery release latch. Slide the battery out and replace after one minute.
    For desktops, disconnect the keyboard from the desktop. Reconnect after one or two minutes.
  • Step 5 Reconnect the power adapter or AC cord. Start your computer.
  • Step 6 If your keyboard is still locked on a Dell desktop, disconnect the keyboard. Restart your computer and reconnect the keyboard after the system boots. Allow your operating system to recognize and reinstall the keyboard


  • Thanks For Your Time.
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    Keyboard and mouse not working whenever restarts my system

    You may want to try your last good configuration... Reboot your computer and hit F8 during the startup to get to that option.
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    Hi, Sorry you are having problems,
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