The keyboard is not displayed. The keyboard on the computer does not work: what to do, reasons. The main reasons why the keyboard does not work

Every PC user sooner or later faces certain problems. Most often they concern connected devices. For example, with the failure of the keyboard to work. This phenomenon is not very common, but it does occur. Today we will figure out why the computer does not see the keyboard and mouse. What actions need to be taken to restore the performance of these devices? How dangerous is the problem being studied for the PC? Having answered all these questions, it will be possible to say with confidence that the failure of the keyboard to work will no longer be a hassle!

Device types

First you need to understand that today you can find several types of devices under study. Depending on the type of keyboard, the algorithm for solving the problem will change.

To date, the following devices are distinguished:

• USB keyboard (wired);
• wireless models;
• with PS/2 socket.

The first two keyboards are universal. They can be connected to any PCs and laptops. The last device is considered obsolete. It usually connects to desktop computers.

Causes of problems

The computer does not see the keyboard? Why is this happening? There are quite a few reasons for this phenomenon. It is very difficult to predict them.

Nevertheless, among the main causes of the failure under study, there are:

• missing / damaged drivers;
• the need to update the keyboard / mouse driver;
• incompatibility with OS and other connected devices;
• mechanical damage to connectors;
• keyboard malfunction;
• nest damage;
• PC virus infection.

Driver Issues

Let's start with the most common problem - missing, crashing or outdated drivers. It is this software that gives users a lot of trouble.

You can check for the presence of the driver through the device manager. To do this, right-click on the "My Computer" icon, then select "Properties" - "Device Manager". Now you need to go to the "Keyboards" item and look at the connected devices that appear.

If there are no keyboards in this window, then the PC really does not see them. There are no drivers on the computer. Otherwise, you need to double-click on the line with the connected device and go to the "Drivers" section. To update them, the user will have to click on the appropriate button. To bring the idea to life, you must first connect to the Internet.

The computer does not see the keyboard? In this case (if the device is not displayed in the manager), you will need to go to the device manufacturer's website, select the keyboard / mouse model there and download the drivers. After that, you should install them by running the downloaded software package. The problem should be gone.

Incompatibility

In some cases, the keyboard due to their incompatibility. Such situations are rare, but they do occur. It's no secret that all PC devices have their own system requirements. Non-compliance with them leads to malfunctions of devices. There is a software conflict with a peripheral device and it is not recognized.

The incompatibility cannot be fixed. The maximum is to change the operating system used or replace an incompatible device. This is the only way to get the mouse and keyboard working.

Damage

But that's not all! The computer does not see the keyboard? If the user is sure that the device is compatible with the operating system used, and there are drivers on the PC, you will have to look for the problem elsewhere. For example, in the device itself.

To avoid damage, the user must:

• check the integrity of the nests;
• make sure that the cable (if any) is intact;
• Check if the devices are connected correctly.

If any damage is found, you will either have to take the PC and keyboard for repair, or use new connectors for connection, or buy new peripherals. Damage in practice is quite common, but it is not difficult to fix them.

Viruses

The computer does not see the keyboard? It is possible that there are some viruses in the operating system. No user is immune from them.

What to do? Need:

1. Scan your PC for viruses. This requires an antivirus program. You can pay attention to Dr. Web or NOD32.
2. Scan your computer for spyware. SpyHuter can handle this task.
3. Try to cure everything This operation is performed by clicking on the "Cure" button in antiviruses.
4. Anything that could not be cured should be removed. Antivirus and spyware programs will have separate controls for this.

Once all the above steps have been completed, you can restart your PC and watch what happens. Most likely, the PC recognizes the mouse and keyboard. If this does not happen, it is recommended to reinstall/update the drivers.

About connection

Many are interested, To do this in most cases is easier than it seems. Especially when it comes to wired models.

All actions must be performed with the PC turned off. Next, the user must simply take the wire from the keyboard and connect it to the appropriate connector. For example, a USB keyboard needs to be connected to a USB socket. It is very comfortable! The same should be done with PS/2 type devices.

You will have to act somewhat differently when it comes to wireless devices. In this case, many people think about how to set up the keyboard. Typically, these devices do not require additional configuration; they start working immediately after installing the drivers.

The connection goes like this:

1. Insert the battery (batteries) into the device.
2. Connect special receivers to the PC. They need to be connected to a USB port.
3. Move the switch on the keyboard to the "On" position.
4. Turn on the computer. Activate Bluetooth on it.
5. Wait for the devices to sync.

That's all. Now it’s clear how on a computer with a wireless connection. Everything is much easier than it seems.

conclusions

We figured out why the computer does not see the keyboard. It is worth noting that there are many options for the development of events. Most of them come down to either buying a new device or reinstalling drivers. Only in some cases, the failure of the keyboard to work is a sign of serious problems.

Every device has its own lifespan. And it must be taken into account when connecting to a PC. Typically, keyboard wear with active use occurs 5 years after purchase.

The incompatibility of software with the device is mainly faced by users of old OS and new devices. Also, a similar problem now occurs on computers with Windows 10.

The keyboard is the main instrument for entering information, without which work on a computer is impossible. Most often, in order for this device to work flawlessly, it is enough just to connect it to a computer, and it will install all the necessary drivers automatically. This happens in most cases, but not always. There are situations when, when the keyboard is connected to the USB or PS / 2 connector, it is not detected on the computer and does not show any signs of operation - the indicators do not light up, and the buttons do not work. Within the framework of this article, we offer instructions on what to do if the keyboard on the computer does not work.

Connecting the keyboard to the computer is as simple as possible - just insert its wire into the appropriate connector on the motherboard, and after that the device will start working. There are wireless keyboards, the radio receiver from which is inserted into the USB connector, after which the device works if the distance between the transmitter and the device is observed.

Due to the simplicity of the process of connecting a computer, we can conclude that there are only 2 reasons why the keyboard does not work on a computer:

• Mechanical. There may be problems directly with the keyboard or the wire with which it connects to the motherboard. Also, the cause of the malfunction may be a broken connector on the motherboard.
• Software. Keyboard drivers are installed automatically, but the installation process of any software can fail, and this situation is no exception. In addition, problems can be observed not at the operating system level, but in the BIOS, where the corresponding settings for the keyboard are disabled.

Depending on which connector the keyboard is connected to the computer, we offer different options for solving problems that arise.

What to do if the keyboard does not work on a computer via USB

The most common interface for connecting a keyboard to a computer is USB. The speed of information transfer from a peripheral device to a computer is enough, both through the USB 2.0 protocol and through USB 3.0, so there is no difference in which connector to connect the keyboard to.

If the USB keyboard does not work when you turn on the computer, you need to do the following:

It is worth noting that users whose keyboard is connected to the motherboard via USB may have problems getting into the BIOS on the boot screen of the computer if they are using an old version of the underlying software. In this case, you need to find a keyboard with a PS / 2 connector or use the appropriate adapter.

What to do if the keyboard does not work on a computer using the PS / 2 protocol

Keyboard manufacturers are trying to move away from the PS / 2 connector, abandoning it in favor of USB. It is very difficult to find a PS / 2 keyboard for sale, but if you come across such peripherals and it does not work when loading Windows, the problem is most likely related to the drivers. To make the keyboard work, you need to do the following:

It is worth noting that a similar problem with keyboards connected via the PS / 2 protocol most often occurs due to an error when installing the i8042prt.sys or kbdclass.sys driver.

Have you ever had a situation when you, while working at a computer, suddenly noticed that the keyboard refuses to type? And it doesn't matter if you're texting on social media or typing the most important work of your life: a thesis, a master's degree, or a much more promising professorial one. You are wondering why the keyboard on the computer does not work. You reboot the operating system in the hope that everything will fix itself, but no. The keyboard, as before, does not respond. You start to panic. What to do? Call the master or buy a new keyboard? What if it's a laptop? There is an exit!

To eliminate this unpleasant breakdown, you first need to figure out what type of keyboard you have connected.

Computer keyboard connection type

• USB keyboard. This type is the most common in our time. The USB keyboard uses plug-and-play technology ("plug and play"), so the connection is the most common problem. As soon as the keyboard stops responding, first of all, you need to disconnect it and plug it back into the USB port of your computer device. Perhaps the contacts just went away. Usually, doing this will fix the problem. But it also happens that the failure is not in the keyboard itself. If these actions did not lead to a positive result, it is likely that the port itself in the computer has broken. Try connecting the device to another device, or at least to a different USB port on your PC. Having done these steps, you can already discard some of the guesswork about why the keyboard does not work on the computer. Windows XP, 7, Linux implement device connection settings in different ways. There is a possibility that the problem is in the software or operating system settings.

• PS/2 computer keyboard. This type of connection has been used for a long time and is considered the most reliable, because it does not require the installation of drivers. The keyboard connector has 6 pins for connection. It happens that if the connector is ineptly connected to the computer port, one of the contacts may bend. It needs to be aligned for the keyboard to work. If the keyboard stops working while working on it with the PC turned on, be sure that the problem is in the operating system or software. Perhaps some process is slowing down its work. The main difference between a PS / 2 computer keyboard and a USB is that if the device fails, you must restart the computer in order for it to work again. After all, this is not a plug-and-play technology.
• The wireless keyboard is a modern type of input device, but that doesn't mean it's without flaws. It may also refuse to work, like other types of devices. You can think for a long time why the wireless keyboard on the computer does not work, but the main breakdowns and problems occur most often when something blocks the USB receiver. In this case, you need to clear the computer table of unnecessary things and see if it works now. In fact, a wireless keyboard is the same USB peripheral, with the only slight difference: there are no wires here. In this regard, it is necessary first of all to check the blocking of the signal. If no changes have occurred, then you must follow the steps described in the paragraph USB computer keyboard.

Troubleshooting through the BIOS

1. You have taken the steps to fix the problem mechanically, but, unfortunately, this did not help. Panic sets in. Why doesn't the keyboard on my computer work? Windows 7, first of all, needs to be rebooted. Perhaps the problem will fix itself.
2. Try pressing the Esc button a few times to see if the display's auto-start menu appears. If there is no response from the program, it is necessary to replace the keyboard - the problem is not in the software.
3. If the autorun menu worked, press the F10 key to bring up the BIOS menu. In the settings, you need to set the default values, this is done by pressing the F5 key. Some devices may have other hotkeys.
4. After making changes to the BIOS, you must restart the operating system.
5. If, after the steps taken, you still have not solved the problem and are wondering why the keyboard on the computer does not work, then you need to reinstall the keyboard software in Device Manager.

Reinstalling and configuring keyboard software

In the control panel of any operating system in the Start menu there is an item "Hardware and Sound", under which there is a view of devices and printers. This is the section we need. By right-clicking in the window, you must select "Device Manager". Do not forget that you must have administrator rights, otherwise you will not be able to change the settings of hidden devices. So, in a new open window, we are looking for the necessary item Keyboards and trying to solve the problem of why the keyboard does not work on the computer. Windows 7, 8, XP are slightly different in their interface, so the path to the setup menu may not be the same. When calling the object's control panel, select the option to reinstall and update the hardware configuration and drivers. After rebooting the computer, the hardware should work correctly.

The problem of pressing several characters on the keyboard with one key

Sometimes while typing from the keyboard, a situation arises when the keys stick and print several characters at once. And the problem is not that you press the keys for too long. The whole point is in the keyboard response settings. To change these settings, you must manually enter the word "keyboard" in the search bar in the start menu "Start". A new window will appear before your eyes, when you open it, you should correctly adjust the speed of the delay in entering a repeated character. From now on, you will not worry about why the keyboard on the computer does not work correctly.

1 way to fix keyboard inoperability outside the operating system

Often situations of keyboard failure occur due to incompatibility of drivers on the operating system. There are different versions of Windows: 32 and 64 bit. How do they differ and why do they need different drivers? The main difference is in the processing of different amounts of RAM. That is why it is necessary to install various types of drivers so that at the most inopportune moment you do not panic why the keyboard on the computer does not work. Windows 8, 7, XP, Linux require installation of different types of software. But to find out if this is the real cause of the problem, you need to restart your computer and look, by pressing the NumLock and CapsLock keyboard keys, check their operation using the indicators that light up.

2 way to troubleshoot keyboard through CMOS

Another way to check if the keyboard is working outside of the operating system is to go into the CMOS settings and try the keyboard in safe mode. Sometimes the operating system crashes, safe mode will fix this failure. If the CapsLock and NumLock keys fail, you must go to the first method.

The computer device beeps when typing from the keyboard: solutions

Why doesn't the keyboard on my computer work correctly? There are situations when, when working with a character set, a computer device emits beeps. In this case, you need to change the keyboard settings. To go to the settings, you need to write the word "Keyboard" in the search bar.

In the control panel results that appear, there is an item to change them. You need to follow this link, near the item “Easy typing”, uncheck sticky keys and go to their settings. In the new window that opens, uncheck the box next to Sticky Keys when you press the Shift button five times. We save the results by clicking on the OK button, after which the previous keyboard settings window automatically opens. In it, uncheck the box next to the item of sounding switches by pressing the Num Lock button for 5 seconds. After saving the results of the settings, the computer device will no longer produce meticulous beeps.

Numeric keypad refuses to work

Some users, when buying a peripheral, sometimes wonder why the numbers on the keyboard on the right do not work. On a computer, this situation happens quite often, especially on the Ubuntu operating system. What to do in this case? Try just pressing a combination of two keys: Shift + Num Lock. Most of the time this helps. There is a possibility that the mouse control is configured from the numeric keypad. To disable it on the Windows operating system, you must press the key combination Alt + Shift + Num Lock. There is another more complicated way to get to the optical mouse settings. But why complicate your life when pressing a keyboard shortcut can solve the whole problem?

Why the keyboard on the computer does not work when turned on: solving the problem

To solve this problem, you need to follow these steps:

1. Check the connection itself. It doesn't matter what type of keyboard: USB, wireless or PS/2. If the problem is connection or signal loss, the keyboard will not work.
2. If everything is OK with the connection, you need to download a new version of the software that is compatible with your operating system and reinstall it for your keyboard.
3. When reinstalling the driver did not help, it means that you need to configure everything manually through the BIOS, CMOS or "Control Panel".
4. If it is possible to connect the keyboard to another computer device, check its performance on it. In each operating system, software settings are located in different paths. You need to know the interface of the operating system well in order to solve the problem of why the keyboard on the computer does not work. Windows 8.1 is arguably the most difficult system to set up software changes. But to change keyboard settings, you don't need much knowledge. It is necessary to strictly follow the instructions, and then your peripheral device will work again as quickly as before.

Possible reasons for the inoperability of some keys on the keyboard

There are times when, due to negligence or negligence, the user of a computer device spills water, tea or other drinks on the keyboard. And it’s good if the owner of the computer did it himself, because he knows where the problems with the peripheral come from. But when someone else did it and did not admit it, the owner will scratch his head for a long time why the USB keyboard on the computer does not work. But most often it happens that certain buttons stop working. Then it is necessary to disassemble and manually clean the keyboard, and if it has already oxidized, then completely change it. After all, there is little chance that it will now work as before.

Note to users

Now you know the possible causes of a broken computer keyboard. It will be new to some users to find out that an on-screen keyboard is automatically installed on any operating system. In the event of a peripheral device failure, it will definitely help you.

Instruction

When connecting a PS / 2 keyboard: plug the cable from the keyboard into the connector of the corresponding color located on the rear panel of the system unit, restart the computer.

When connecting a USB keyboard, you must enable USB support in Bios. Enter BIOS by pressing the "Delete" key when starting the computer. Find the USB Controller settings and check the "Enabled" value in the settings. Save your changes by pressing F10 or Y. Log out of Bios by pressing F10 or Y. Restart your computer.

If the application of the above instructions did not lead to a positive result, do the following: right-click on the "My Computer" shortcut, find the "Manage" item. Select the "Device Manager" category, find the keyboard in the list of devices and right-click on the inscription. Select the "delete" item, reconnect the keyboard. Select the "update hardware configuration" task in the "Action" section of Device Manager. You can also check the "USB Controllers" section for errors by selecting the "recovery" functions from the Device Manager menu.

In addition to the complex reasons that Windows does not see the keyboard, there can be quite minor ones: squeezing the keyboard wire or the presence of a manufacturing defect.

note

If the keyboard itself is working properly, but the multimedia keys are not functioning correctly, it is worth installing the drivers from the installation disk that should come with the keyboard. If such a disk is not available, download the installation media files using the Internet, guided by the manufacturer of this peripheral device and its model number.

A lot of commands are executed with the mouse. The Windows operating system allows you to apply different settings for different hardware, including the mouse. Assign buttons for right-handed and left-handed people, set the number of clicks to open windows and execute commands, select the type of cursor - this and much more can be customized to your needs and needs in just a few clicks.

Instruction

To open folders and launch programs with a single mouse click, open any folder. On the top menu bar, select "Tools", in the drop-down menu, select "Folder Options". On the General tab, in the Mouse Clicks section, check the "Open with one click, select with the pointer" box. Click the "Apply" button, close the window by clicking on the "OK" or "X" button. To set up a double click, go through all the steps, in the "Mouse clicks" section, select "Double open, single click select". Confirm your choice, close the properties window.

To configure the buttons for right-handed or left-handed use, follow these steps: From the Start menu, go to Control Panel. If the classic view of the panel is selected, select the "Mouse" icon. If the icons in the control panel are displayed by category, navigate to the mouse properties window through the "Printers and other hardware" category. On the Mouse Buttons tab, select the Button Configuration section. Place a marker in the Swap Button Assignments field to reconfigure the mouse for left-handed use. When the mouse is configured for right-handed use, the field is blank. You can also adjust the double click speed here.

The appearance of pointers can be configured from the same window by going to the Pointers tab. From the "Scheme" drop-down menu, choose how you want the cursor to look. In the central part of the tab window, you can see how the new cursor will look when performing certain operations. From the "Pointer Settings" tab, you can adjust the speed at which the pointer moves across the monitor screen. Adjust the "slider" in the "Move" section. You can set the number of lines by which the document will move when scrolling the mouse wheel, from the "Wheel" tab. To increase or decrease the number of lines, enter a number in the field using the keyboard or use the up and down arrows at the right edge of the field. To confirm your choice, click the Apply button and close the properties window.

Not everyone has yet managed to change their computers for more modern stationary or for small and convenient laptops, where the keyboard is already built into the device. Or perhaps your new keyboard has suddenly failed, and work is urgent. But there is always a way out, because you can attach an old “keyboard” to a new or old computer. That's just how to do it?

You will need

• - keyboard with old connector;
• - keyboard with USB connector;
• - PC user manual;
• - desktop computer;
• - adapter from PS/2 to USB;
• - a CD with drivers for the keyboard (usually comes with the keyboard).

Instruction

Turn off the computer, otherwise it will not see the new keyboard. Connect keyboard with the old connector to the PS / 2 port (which may not be on modern boards). There is a PS / 2 port for both a computer mouse and

A standard keyboard usually doesn't need a special setup to work in Windows 7: to start using it, you just need to connect it to a PC. But, as with any device, keyboards also sometimes have problems. Most often, this is a complete or partial failure, as well as incorrect operation. In addition, some users find the default keyboard setting inconvenient and want to change it.

We have prepared a story on how to troubleshoot the keyboard yourself and how to set it up for a more convenient “use” in Windows 7.

The most common types of keyboard problems and how to fix them

• The keyboard doesn't work at all.
• Windows 7 does not recognize the keyboard.
• The keyboard works, but the wrong characters are printed when typing.
• The keyboard does not respond to individual key presses.
• The system does not recognize keyboard shortcuts.

The keyboard does not work, is not recognized by the system, the indicator lights do not light up

This problem indicates that the device is not connected to a power source or is malfunctioning. To exclude the first reason:

• connect the keyboard to a known working USB or PS / 2 port of the computer without adapters and other “intermediate” devices (connection to PS / 2 can only be done when the power of the system unit is turned off);
• make sure the connection is secure.

If the keyboard still does not show signs of "life", it is probably faulty itself or its cable is damaged.

This state of the wireless keyboard may indicate that the batteries are low or the batteries are missing.

The keyboard does not work exclusively in Windows. Before the system boots, as well as on other computers, it works

The keyboard is OK, but does not work due to a system failure. The reasons may be:

• driver problems;
• locking the device with software;
• viral infection;
• registry changes and system file corruption.

If the problem did not occur immediately after installing Windows 7 (the keyboard worked fine on this computer before), try uninstalling its driver:

• open the control panel -> Device Manager;

• find the keyboard in the list, open its context menu and select the “Delete” item.

• restart your computer.

These steps will help Windows 7 re-recognize the connected device and reinstall it.

The other issues mentioned in Windows 7 and programs that caused the keyboard to fail can be fixed with System Restore. To do this, go to Start, open All Programs ->> Accessories ->> System Tools and click on “System Restore”.

Select an appropriate checkpoint that was created before the failure date.

Confirm your intention by clicking the "Done" button.

Wait for the recovery to finish. All changes, which include installing and configuring software, setting up the registry, installing Windows 7 updates, etc., will be canceled, and what blocked the keyboard will no longer work.

If a possible cause is a virus infection, scan the system.

Windows 7 does not "see" the keyboard. It shows up as an unknown device.

This often happens with non-standard keyboards that use their own drivers. Installing the necessary driver from the disk that came with the keyboard upon purchase, or from the manufacturer's website, will help solve the problem.

The Microsoft Standard Keyboard Driver can be downloaded from here.

Keys not being pressed or typing other characters

Most often this is the result of contamination of the keyboard and the ingress of liquids into it. You can clean the device of crumbs and other debris that accumulates under the keys using a special vacuum cleaner or a can of compressed air.

If the keyboard does not work after liquid has entered it, it must be disassembled, washed and dried.

If a problem like this occurs when you connect any keyboard to your computer, the port (PS / 2 or USB) or the motherboard may be the source of the problem.

The performance of individual keys can be checked using test applications, for example MS Key, which is included in the Microsoft IntelliType software suite, or Key-test , Keyboard Tester online services and the like.

Some keyboard shortcuts don't work

The reason for this is often third-party keyboard management software. Moreover, the application does not necessarily work on your system, it may have been incorrectly deleted before. Sometimes the problem is created by incorrect configuration of such programs.

To check this version, start Windows 7 in safe mode (programs from the startup list will not start under it). If the keyboard is working properly, the assumption is correct.

Customizing Keyboard Options in Windows 7

Layout setup

In the notification area on the taskbar, click the input language button and check the layout you want.

Or press the given keyboard shortcut. If you don't know it, open the Windows 7 Control Panel ->> "Regional and Language Options".

On the “Languages ​​and keyboards” tab, the “Change keyboard” setting is available. Click the button.

In the “Keyboard Switching” section, a keyboard shortcut is indicated that changes the layout setting.

Setting the character entry delay, input speed, and cursor blink rate

Open the Keyboard app in Control Panel.

Character input options in Windows 7 are located on the “Speed” tab. Move the sliders to find the settings that are best for you. You can check how it works in a special input field in the same window.

Here, below, is the setting for the blinking frequency of the cursor when entering text. It is also changed by moving the slider left and right.