The input device, or in simple words - the keyboard, is often amenable to any accidental breakdowns and malfunctions. As a rule, most often they are mechanical, but sometimes it happens that they are purely technical. One of the most common problems is incorrect typing. The user presses a certain key, and in response receives a completely different value, or does not receive any reaction at all. The reasons for this can be a variety of problems.
Why does the keyboard type the wrong letters
The most common reason an input device does not work properly is because the keyboard is very dirty. This especially happens after spilled tea, as a result of which the buttons become sticky. Even a small amount of ordinary water can cause a similar effect.
However, water is not the only reason. Dust and various dirt can also cause such problems. Therefore, the first thing that needs to be done for the keyboard to work fully is simply to clean it from dirt.
Despite the fact that they pay the least attention to the keyboard, as well as to other small elements, it also requires good care. All that is needed for this from a person is timely cleaning of the case, as well as maintaining cleanliness in the room.
Such care is the easiest and safest, because the user does not risk damaging the most important and expensive computer components, after which it will be necessary to send all the equipment for repair.
To fully clean the keyboard, you must disconnect it from the computer's power supply, after which you need to take off the buttons in turn and clean up the accumulated dirt under them. Despite the fact that this is a lengthy business, you need to remove the buttons as carefully as possible, since they can simply break with high force. If a person is afraid to independently carry out such a process, it is enough to simply turn the keyboard over and gently tap on it, most of the pollution itself will fall out of the case.
Important! Before cleaning, you need to photograph the location of the keys, or prepare the corresponding image with them. It often happens that after cleaning is complete, people simply forget the key placement order.
Common causes
In addition to internal pollution, there are many reasons why the device writes the wrong letters. The most common of them are:
- Additional keyboard - called using the command: FN + Insert. You press this combination and the operating system provides for the use of auxiliary characters. This problem will be relevant directly to laptop owners. Most often, it appears in a person by accidentally pressing a special combination of buttons. To fix this, you must re-perform the combination indicated above.
- Sticky keys - In 95% of cases, inexperienced gamers encounter this. When you repeatedly press the "Shift" key, the system automatically blocks the use of the keyboard and issues the wrong letters. This is done directly for the purpose of security. You can disable this feature in the "Control Panel" section, in which you will need to click on another section: "Accessibility Center". After that, in the window that opens, the settings for sticking keys will be available.
- Language setting issues - also a fairly common problem. For the layout to work fully, it is necessary to set in the column "Languages" the corresponding parameter on which the work will be carried out. Often, many people unknowingly install several languages at a time, after which a problem arises with regional governance.
How to fix problems
If a full-fledged cleaning did not help, and the input device still does not work as it should, then it is urgent to check the computer with an antivirus program. The presence of malicious viruses is one of the possible causes of this problem.
If the result is positive, it is necessary to check all the specified settings that were described above. If this does not help, then the next step is to check the device drivers. It often happens that they simply fly off, due to the incorrect termination of the operating system. With this problem, a window will pop up with a notification about the absence of drivers on the input device.
The last step, which will be more responsible, is checking the USB input. If this connector is damaged, it will become a serious problem. Fortunately, there are several of them on the motherboard, so if one of them is free, the problem is solved.
When to contact a specialist
It is worth noting that the keyboard itself is a consumable component of the computer. Regardless of which brand, model, or device type - all have a certain number of keystrokes, which manufacturers declare. With long-term use, repairs will simply be impossible. Therefore, you will have to purchase a new device.
The only reason it would be worth contacting a specialist is a damaged USB input connector. This connector is located on the motherboard, which is responsible for the entire performance of the computer. In addition, it often happens that all the connectors can already be occupied by other devices, so the main output will be a full repair.
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