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Updated: by Computer Hope It can be extremely frustrating when your keyboard won't work. The keyboard is the primary mode of to your computer.
If you have no keyboard, you can't perform simple tasks like to your, or even entering. For this reason, we always recommend having a backup keyboard somewhere handy. A cabled keyboard with a interface is a safe option that can reliably be used on any laptop or desktop computer made in this millennium. You can usually pick up a brand new one at your local office supply or electronics store for about $10, or find used or refurbished keyboards for sale online. Always try to keep a spare keyboard handy! If you have no working keyboard, your troubleshooting options are very limited. Many of the following steps require that you use another keyboard to diagnose the problem.
If you don't have one, we recommend that you do as many of the following steps as you can. Note: On this page, we discuss what to do when the keyboard won't work at all. If you're only having problems with specific keys, you should read our troubleshooting guide,. Check for hardware problems Check your connection Sometimes the simplest solution will fix the problem. Verify that your keyboard is plugged in securely.
Disconnect the keyboard from the computer and then reconnect it into the same port. If you have a USB keyboard, you may want to try a different USB port to isolate the issue. Check wireless keyboard power switch Most, if not all, wireless keyboards have a power switch so you can turn a keyboard off when not in use, to save battery life. Check the power switch on the keyboard and make sure it is turned on. Check wireless keyboard batteries and wireless adapters If you are using a wireless keyboard make sure the batteries in the keyboard haven't died. Also, check that the wireless receiver (usually USB) is connected properly to the computer, and that nothing is blocking the signal. Keyboards with PS/2 ports If yours is a keyboard, try another PS/2 keyboard (if you have access to one) in the same port.
If you connect a known working keyboard to the computer PS/2 port and it doesn't work, the PS/2 hardware may have failed. If so, the itself may need to be replaced to fix the problem. If you have USB ports on your computer, try a USB keyboard instead. USB hub If you are using a keyboard and the keyboard is connected to a, try connecting the keyboard directly into the back of the computer. If the keyboard works after doing so, the USB hub is likely defective and needs to be replaced. Test the keyboard outside Windows In some situations, a keyboard may not work in Windows because of an issue with software that interacts directly with the keyboard, such as.
If the keyboard has illuminated indicators for, or, try rebooting the computer and see if pressing these keys toggles the indicator on and off. You can also test your keyboard by trying to press the key to enter. This key is usually F2, F12, or Del. Your computer's boot messages will specify the correct key.
If the keyboard is working as the computer is booting up, something in Windows is preventing the keyboard from working. Try booting the computer into. In Safe Mode, your operating system loads the bare minimum software and device drivers to reduce potential conflicts. If your keyboard works in Safe Mode, try uninstalling or re-installing any recently added software. If the Num Lock and Caps Lock do not work, and you cannot enter CMOS setup, all you can do is try another keyboard.
If another keyboard doesn't work, chances are the motherboard needs to be replaced, and it may be time to consider replacing your computer. Try Updating your drivers Note: You need a working keyboard to follow these steps. If you cannot get any keyboard to work on your computer, skip this section. Windows update Sometimes devices stop functioning because their software is out of date. If your operating system is Microsoft Windows, should automatically keep your drivers up-to-date. To run Windows Update manually, follow these steps.
Press the Windows key, type Windows Update, and then press Enter. Follow the instructions in the window that appears. Manually installing drivers If you suspect that Windows update was not able to find your keyboard, visit the manufacturer's website to download them. Getting keyboard drivers are necessary if you are using a special or programmable keyboard. Check for the keyboard in Device Manager Windows has a built-in Device Manager that can help you to identify and resolve issues with hardware devices, including keyboards.
Replace keyboard If the troubleshooting options above do not yield any results, or you do not have a spare keyboard, we recommend replacing the keyboard. Having the keyboard fixed is usually not cost effective, as it is most likely cheaper to buy a new keyboard.
One of the USB ports on my desktop computer stopped working after I had plugged in a USB device and removed it without ejecting. I’ve done it a million times, but it looked like my luck finally ran out. The port seemed fine in Device Manager because there were no error or warning icons.
So after doing a bit of reading online, I came across a Microsoft article that told me I should go ahead and uninstall the USB Host Controllers under USB Serial Bus Controllers in Device Manager. After that, you just have to restart your computer and Windows should find the hardware again and install it. Well, not exactly. I’ve done this before and normally it works just fine, but this time around my luck failed again and instead of having that one dead USB port working again, all of my USB ports were dead! What was really funny was that the connected USB mouse and keyboard worked fine in the BIOS and it even worked when I loaded a different operating system on my dual boot system, but the instant Windows 7 started up, it would kill all power to the USB devices. Now every help article I was reading that said click on this or uninstall this driver or download XYZ was completely useless because I had no input device to click on anything!
After about an hour I started getting nervous that I would actually have to reinstall the OS, but thankfully the last solution I tried finally worked. The dead USB port is still dead, but that’s another post for another day. In this article, I’m going to go through the different steps you can take to try to regain access to your system if you currently have no mouse or keyboard access. Method 1 – Try PS2 Ports The first article I read when searching for this problem mentioned attaching a PS2 keyboard and mouse and then getting access. I had already thought of that, but my computer is newer and therefore only has USB ports! If you’re lucky enough to still have PS2 ports, then you just need to find an older keyboard and mouse to use to gain back access. If you’re like me and only have USB ports, then read on!
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Method 2 – Check the BIOS The next step is to check the BIOS and see if somehow USB was disabled. You can pretty much be sure it’s not disabled if you can still use your USB device while in the pre-boot environment. If it only dies when Windows starts to load, then it’s probably enabled. Be very careful not to change the settings to USB Disabled! If you do that, then you won’t even be able to use your USB keyboard while in the BIOS and you’ll really be in trouble. The only way to enable a USB keyboard after your disabled USB in the BIOS is to either use a PS2 mouse or remove the CMOS battery off the motherboard!
Unless you want to be taking apart your computer, definitely don’t disable USB if you don’t have any PS2 ports. If USB is enabled, which it probably will be, then move on to the next method. Method 3 – System Restore This method is the one that finally worked for me. I was really lucky because I had just installed a program the day before and Windows created a restore point for me automatically.
Hopefully, you didn’t disable system restore on your system because if you did, you’re going to have to take more drastic measures to get your keyboard and mouse working again. To do this, you need to press the F8 key right when Windows is about to load. Once you see the logo for the computer manufacturer, you should start holding down F8. If you have a dual boot system or a multi-disk system where you have to choose which drive you want to boot from, go ahead and select that OS or disk from the list and the instant after you press Enter, press and hold the F8 key. That should get you into the Windows 7 Advanced Boot Options dialog. You’re going to go ahead and choose Repair Your Computer.
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I tried logging into Safe Mode also, but the keyboard and mouse still refused to work, so that was a dead end. Now you’ll see a list of system recovery options.
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Click on System Restore and you’ll get the familiar dialog box where you can select a restore point. You obviously want to pick one that was created before your problem occurred. By default, it will pick one for you, but you can choose a different one if you like. Once you restore, you should be good to go and have access to your keyboard and mouse again. If you didn’t have a restore point created, then you are pretty much out of luck. Unfortunately, at this point, I haven’t been able to find any other guaranteed solutions outside of PS2 ports and system restore.
There are some last resort hail-mary options I’ve listed below. Method 4 – CMOS Battery This probably won’t help because the problem is related to Windows, but you can give it a shot. Thankfully removing the CMOS chip is not all that bad.
You just have to open your case and find the little round battery on the motherboard, which is usually easily visible. Method 5 – Repair Install Windows 7 If you don’t have a restore point, then the last resort option is to perform a repair install. This will replace the mouse and keyboard drivers with the original ones and you should be working again. A repair install will simply re-install the Windows OS, but will not delete your data. The process is fairly long and it will take some time, but it’s better than having to re-install Windows altogether. Has an awesome tutorial that walks you through the whole process and explains all the caveats, etc.
Method 6 – Refresh Windows 8 If you’re using Windows 8, you might have a bit more luck. You can try to Refresh the PC, which is a new option in Windows 8. Read my previous post on how to. In order to do that, you’ll first need to get into the dialog. You can also read the repair install guide for Windows 8 created by, the same site as SevenForums, just for Windows 8 stuff. Again, you don’t lose any data, but you should have a working mouse and keyboard again. Hopefully, you can get access back to your computer using one of the methods above!
If not, post a comment here about what you tried, where you got stuck, etc and we’ll try to help.