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Keyboard doesn't connect after windows loads - Dell Optiplex 740 Desktop Desktop Computer

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  • ted1430
    ted1430 May 11, 2010

    USB, PS/2, Bluetooth, or other wireless? Same question as above for the mouse as well. Is the mouse functioning after boot?

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It is problem your computer motherboard try to usb keybord

Posted on Jul 14, 2009

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Posted on Jan 02, 2017

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My nextbook ares 10l keyboard stopped working


If your USB Keyboard stopped working, you can try to disconnect it and connect it back on the fly. USB connections are plug and play, so if you are running Windows and your USB keyboard doesn?t work, you can try unplugging and plugging it back to re-establish the communication, or simply try connecting it to another USB port. If this still doesn?t work, check the led lights on the keyboard; are any of them on? If they are, is the computer acting slowly? You may need to restart it at this point to refresh your computer memory and resources to get it back to normal speed, or perhaps it needs maintenance by running disk cleanup and defrag it

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My dell inspiron beeps 20 times at sturtup


I wonder if you have a keyboard issue. Most times the constant beeping means the keyboard is bad, but it doesn't normally boot or revert back to 5 or 4 beeps.

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How do I connect this keyboard to the computer


Keyboards connect several ways. Older systems use a PS/2 connector (round) that plugs into the purple/gray jack on the back of the computer. The mouse plugs into the green jack next to it.
If you have a USB keyboard, it plugs into any USB slot.
PS/2 connections must be made with the computer off. USB connections work any time. If one slot doesn't work, try another.
If the keyboard doesn't work, try another.

Nov 17, 2011 | Unitech K2724U-B Keyboard PC Desktop

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I used a PS/2 Keyboard and one day it stopped working. And I found out that when it's installed even the mouse doesn't work, so I bought a new USB keyboard though I can't enter the BIOS with it...


Hi, you maybe just need a driver for the mainboard.

You can download here:

http://www.biostar.com.tw/app/en/mb/driver.php?S_ID=363

Try the chipset driver first.
Please unzip the file before installation.
You maybe also need the driver for the usb controller.

Try to use a PS/2 mouse until the driver is installed.

Aug 28, 2011 | Biostar G31-M7 TE Motherboard

1 Answer

A program deleted my keyboard and now I don't have one showing when I check the keyboard in my control panel. It works at the very start up but not after. I have tried a new keyboard and windows doesn't...


Generally additional drivers are needed for basic keyboard functionality, although Windows does actually install them as unique devices. Sometimes this process can take several minutes (depending on computer speed) and the keyboard will be unresponsive until it's actually installed. Try plugging in your keyboard, rebooting the PC, and giving it a few minutes once it's up and running.

If that doesn't work you can try booting into Safe Mode by hitting the F8 key during the startup process. This will load generic drivers and will allow you to troubleshoot additional drive and/or software issues.

May 02, 2011 | Microsoft Basic Keyboard 1.0A PS/2 KEMIBA

1 Answer

My keyboard is not working . after i upgrade my laptop to windows 7


The operating system does not have direct access to the keyboard, this is handled by a keyboard controller chip on the motherboard (so that it can be controlled by the BIOS). If the keyboard works before Windows 7 is loaded then there is no hardware fault. If the keyboard does not work at all, even before Windows is loaded then you need to check the connection of the keyboard to the motherboard. If it is a problem only within Windows 7 then try an external USB keyboard. If this works then there may be a driver problem.
There may also be some setting in the BIOS, so use an external keyboard if necessary and get into the BIOS to check all the settings there.
Check online for a BIOS update for your laptop.

Feb 24, 2011 | Compaq Keyboard

1 Answer

Hy i install window 7 in imac desktop after installing black screen apper keyboard blinking 3or 4 minits not working even when cd is booting when it say"press any key to boot cd' wirless keyboard is...


Hi, by reading your question I am not sure if you are saying that when you load up Windows 7, nothing shows but a black screen or if your keyboard is not working. Well anyway I am going to try and help with both.
If you are getting a black screen when loading up, this is probably because your computer does not support Windows 7. In order to use Bootcamp and install Windows 7 you must be on Mac 10.6 and up or Snow Leopard. That is the only OS that supports Windows 7 and if you do have Mac 10.6 but you still have the black screen it is probably because the actual computer can't handle it or the drivers in the computer might not support it. I would say anything before 2005 will not be able to load Windows 7, but I am just taking a guess. For my second solution dealing with your wireless keyboard, when you installed Windows 7, no drivers were installed because Windows does not support them yet. This is why your keyboard was blinking, it was looking for a connection because it was not connected to anything. When installing Windows 7 you will need a wired mouse and keyboard because your Apple Wireless Bluetooth Keyboard is not yet pared with the computer. In order to install the drivers to make your keyboard work you need to load up Windows 7 by holding down the "option" key when turning on the iMac. Then once you select Windows 7, and it loads up to the desktop you need to insert your Mac reinstall CDs, then follow the on screen steps to install the drivers. From there you should be able to go into the control panel and add a wireless keyboard under the devices panel.
I hope this helps, Justin

Feb 06, 2011 | Apple eMac G4 Desktop

1 Answer

Hi I am having a problem with my KVM2 switch recognizing my MS 2000 keyboard. The Keyboard is usb with the adapter on. It reads my mouse but not the keyboard. I have connected the keyboard directly to...


Once you have plugged the keyboard directly into each unit and have loaded the drivers what you need to do is this:
Plug the keyboard back into the KVM switch.
Now take an extra keyboard, a PS2 if you have one, and plug it directly into the PC and use it to reboot the PC while the other keyboard is plugged into the KVM
(so you actually have 2 keyboards plugged in)
After you reboot if it doesn't install automatically try to install it manually with the extra keyboard
You might have to reboot 2 or 3 times.

Be sure to email me back if you have any more questions orif you need any assistance with this solution. Thank you

Dec 24, 2010 | Linksys ProConnect KVM2KIT 2-port KVM...

3 Answers

I replaced my hard drive in my hp pavilion desktop a1520n windows loads and then reads that i will have to register my copy of windows But my keyboard and usb ports dont have power so i cant do a...


A lot depends on where the keyboard and mouse are plugged in. I have seen in the past that the USB in the back works better than the front. Are these the original keyboard and mouse? If not, use the original until after Windows loads the desktop.

Mar 21, 2010 | HP P2360AA Keyboard/Mouse

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