Windows 7 Keyboard Starts Typing One Letter Continuously

Last Updated on October 8, 2022 by

Get extra, double, or multiple letters typing with the keyboard? The laptop performs odd tasks automatically? These can happen on a built-in laptop keyboard, wired & wireless keyboard.

This guide will help you to fix the issue forever (will never come back)

A keyboard is an essential peripheral input device of a computer. The computer cannot work without a keyboard.

A laptop keyboard is internal, and it can use an external one attached using a cable as a desktop. Keyboards may fail to work properly due to several problems like keys not responding.

When a laptop keyboard types extra or multiple letters is an error. For example, typing a word and pressing the 'x' key displays 'xxxx' or 'zxc'. Such an error undermines the functionality of the keyboard.

This problem could be caused by outdated software, language setting, stuck debris under the keys, or viruses like malware.

Keyboards are sensitive to liquid; in case of water, accidentally spills on the keyboard if not dried properly will lead to keyboard complications, including typing multiple characters at once.

Working with a faulty keyboard is very frustrating as you might face strange issues like the laptop pressing keys on its own and so on.

To fix the issue of keyboard typing extra letters, follow the procedure listed below:

Detect The Cause/Origin Of The Problem

Before making any changes, first, check whether the causes of keyboard typing extra letters are from software or hardware issue. Related issues To do this,

Use "on-screen keyboard" and external USB keyboard to test if the keys are working properly or not. It might be a hardware problem on your laptop keyboard if they work here.
Check if the keys are working outside windows, such as in BIOS. If it is working, the problem might be in your windows setting.

Hitting the backspace key each time to delete the repeated letter cannot be a solution. Here I mention some solutions: –

Average Required Time: 5-15 minutes

#1 Restarting The Laptop

Restarting the laptop will help in resolving the keyboard problem. At times conflict may arise between system drivers and the keyboard, causing the multiple letters input. Rebooting the laptop is the best alternative in determining the issue.

Shut down the laptop, remove the battery, and wait for some time. A laptop battery can hamper keyboard functionality, especially if it is overheated. Hold the power button for 15 seconds to release electric power held within the mortarboard.

Restore the battery, restart the laptop, and check if the issue is resolved. 3 out of 5 people mark this method as a verified solution, according to our data.

#2 Update Your Operating System

The operating system is an essential part of a computer. To run software updates for Windows 10, go to setting, update and security, click windows update, and check for updates.

After a complete update, restarts your laptop and check if the issue is solved.

#3 Check Keyboard Drivers

Out of date keyboard drivers may result in keyboard typing multiple letters problems. When the system is up-to-date, and the keyboard drivers are automatically updated, they become incompatible with the system.

Outdated or corrupted keyboard drivers require reinstallation.

Open the device manager, locate the keyboard driver, right-click on the keyboard icon, and select uninstall to reinstall keyboard drivers.

After successful uninstallation, reboot your laptop, and it will reinstall the keyboard drivers automatically. If the drivers fail to download and update successfully, try using a driver tool downloader.

For example, using a driver booster can quickly update the keyboard drivers. It automatically updates outdated or missing drivers on a computer.

#4 Language Setting

Keyboards are organized by an operating system using alphabets and pronunciation letters for diverse languages. When the keyboard layout is wrongly set, the input result will be different and require resetting.

The language setting is important for your keyboard to function well. Every keyboard contains a reset utility for fixing and solving problems related to its functioning.

For example, keyboard typing extra letters. Search language in the taskbar and open the setting menu for language options to set a keyboard language.

Select spelling, typing, and keyboard settings to an advanced keyboard setting. Re-select the default language and save changes. If you are using a different language, download the matching language.

#5 Check Keyboard Settings

Multiple letter typing may be due to incorrect repeat and delay settings. Adjusting keyboard settings to fix typing extra letters problem is easy.

Open the control panel, right-click the keyboard icon, click keyboard properties, and adjust the slider of repeat delay appropriately.

Using the mouse, drag the Repeat delay slider to adjust the length from short to long, repeat rate slide from Fast to Slow, and click OK to apply changes. If the multiple letter typing still exists, try keyboard troubleshoot.

#6 Check The Num Lock Key

The Num lock key is located far right of the keyboard. It is one of the computer's special keys that execute a specified command. It is a lock key and, when it is turned on, makes part of the keyboard into a number pad.

The other part of the keyboard language changes its original language, thus resulting in multiple characters. There might be nothing wrong with the keyboard except that the Num Lock key is on. Check to turn it off and see if the keyboard types correctly.

#7 Troubleshoot The Keyboard

Troubleshooting is used to repair a failed part of machine-like computers. It restores the product to its original operation. Troubleshooting allows for a quick fix of an error affecting the laptop.

To troubleshoot a laptop keyboard, open the control panel, go to settings, update and security and click troubleshoot. Look for the keyboard icon; right-click and click run troubleshoot.

Wait for the troubleshooting process to start and follow the instructions step by step as it appears on your screen. Upon completion, restart your computer to check if the issue is resolved.

Even if you have issues like typing but no letters appear on MS word, restarting your computer will help your programs work properly again.

#8 Scan The Operating System For Viruses Like Malware And Other Threats

Keyboards may type multiple characters and letters because of malware infestation. Viruses format and rearrange system operations of a computer. Keyloggers may invade and change keyboard settings and thus interfering with typing activity. Using a strong antivirus to scan the computer system is recommended to avoid such attacks. After a full scan, check if the problem is solved.

#9 Keyboard Replacement

Keyboards require regular cleaning due to dust and debris held underneath. Dust and debris under the keyboard may cause it to type extra characters. Cleaning an old laptop may prove difficult. Adjustment or cleaning of the ribbon connector to the motherboard is not easy.

This process can be hard, especially with the super-thin version opening. It is impossible. Forcefully opening a laptop risks damaging the beneath top membrane to clean under the keyboard keys. Thus, a total replacement of the keyboard or a USB keyboard is required.

#10 Modify Registry

This process is for windows. Before doing any modification, always create a backup of the registry before making any changes.

You can use an "on-screen keyboard" to implement the process

Start-> Type "Run" -> Type "Regedit". Then, Press on Enter key on the keyboard.
Expand "HKEY_CURRENT_USER->Control Panel->Accessibility->Keyboard->Response"
Open AutoRepeatDelay and the Value to 500. Click "ok" to close the window
Open "AutoRepeatRate" and change the value to 50. Click "ok"
Open "BounceTime" and change the value to 35. Click "ok"

Once you are done, restart your laptop or computer, and it should work fine.

#11 Disable The Keyboard Installed Earlier (For Wireless Keyboard)

Step 1: Type "Run" in the windows search bar. Type "appwiz.cpl" and press the "Enter" key on the keyboard. It will open the "Programs & Feature" window.

Step 2: Find & Uninstall the keyboard controlling program

Solution 1) Press the Left+Right+Shift key simultaneously

Solution 2) Go to Start->Control Panel->Ease of Access->Ease of Access Center->Make the keyboard easier to use. Then, Check the Sticky Keys, Filter Keys, and Toggle Keys. Uncheck the shortcut option.

fix wireless keyboard typing extra letter

Disconnect all wired peripherals. But keep the required ones. Also, remove expansion cards. Boot in safe mode and log in. Then, do the below things: –

Ensure your Mac is turned off
Press the power button
After hearing the startup tone, hold the Shift key ASAP
After seeing the gray Apple icon and progress indicator, release the shift key. It is just like a spinning gear.

In some Mac, programs like wireless networking may not work.

Now, the keyboard should work fine.

#14 How To Fix The Mac Keyboard Double Typing Issue?

Go to Apple menu-> System Preferences ->Keyboard preference panel ->Keyboard tab

then, find "Key Repeat slider setting". After adjusting the off position, exit.

Now the issue should be gone.

(& how to avoid them in future)

You might have split any liquid on the laptop keyboard recently
Sometimes, you have the touchpad activated and rest your wrists on it while you use your finger on the other hand for typing the keys. In this case, ensure you disable the touchpad or keep your hand out of the touchpad

FAQ

How To Fix Multiple Characters Typing For A New Laptop?

For a brand-new laptop, you first need to check if it is a hardware or software problem. Check if the keys work outside Windows (Enter BIOS or boot in a live media rescue disc).

If it is a hardware problem, contact the seller for repair. You would get free technical support. Most laptop comes with a 1-2-year warranty, so you will get them repaired for free.

What To Do If You Cannot Fix The Issue?

After trying all, if the issue persists or if you find the problem in hardware, send it to the repair shop. Never try to tear the laptop apart. Doing so would void the warranty.

What Do I Need To Do Before Sending It To The Repair Facility?

Do a full backup of your data. They might remove them after repair.

Need Help To Solve Laptop Keyboard Typing Extra Letters?

Final Words

A keyboard is a vital part of a computer. Failing to function well undermines its functionality. Using the above solution to resolve the extra character typing issues will completely restore the keyboard to its original functionality.

Otherwise, replace the keyboard if all the above procedures have failed to resolve.

Author
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Patrick Johnson is a tech enthusiast & blogger; currently living in Florida, United States. He loves to write about Laptop Tips, Guides, configurations, features, and Accessories. No matter what questions you have in your mind regarding the laptop, he may already have the answer.

Quora & Reddit are the popular two places where you will also find him. His troubleshooting guides on laptops & laptop accessories are rated high by a good number of tech bloggers.

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Source: https://laptopjudge.com/laptop-keyboard-typing-extra-letters