The main reasons for keyboard input symbols rather than letters are keyboard layout errors, Num Lock or function key abnormalities, input method interference, and auxiliary functions are enabled. The solutions are as follows: 1. Check and correct the keyboard layout, Windows users adjust through taskbar language icons, and Mac users modify it in system settings; 2. Turn off the Num Lock or Fn key function, and some notebooks need to press the Fn Num Lock key combination; 3. Switch to the system's own input method to uninstall third-party input methods or tools that may conflict; 4. Turn off auxiliary functions such as sticky keys or filter keys in Windows, and restarting the computer or resetting the input method settings after troubleshooting can usually solve the problem.
It is really annoying to enter symbols instead of letters on the keyboard, especially when you are typing. The main reasons are usually errors in keyboard layout settings, Num Lock or function key exceptions, or problems in system language settings. Don’t worry, the following common reasons and solutions will help you quickly troubleshoot and repair them.

1. Check whether the keyboard layout is correct
This is one of the most common reasons. If your keyboard layout is incorrectly switched to "American International Keyboard" or other variants, you may press the letter key and enter the symbol.
Solution:

-
Windows system:
- Click the language icon in the lower right corner of the taskbar (usually "ENG" or your current input method)
- Make sure you choose the keyboard layout you use, such as "Chinese (Simplified) - American Keyboard" or "English (US) - QWERTY"
- If there are multiple layouts, try deleting or adjusting the order, make sure the default is the one you are used to
-
Mac system:
- Open System Settings → Keyboard → Input Source
- Make sure you add your commonly used keyboard layouts and cancel your less commonly used layouts
For example: the American international keyboard will not output immediately when pressing
"
or'
, but will "wait" for the next letter, combining accented characters, such as' e = é
. If you don't pay attention to this, you will easily mistakenly think that the keyboard is broken.
2. Check whether the Num Lock or Fn key was accidentally touched
Some laptop keyboards will turn some letter keys into numeric keys when Num Lock is turned on. This problem is more likely to occur when external keyboards or when using laptops of certain brands (such as Lenovo and Dell).
Operation suggestions:
- Find the Num Lock key on the keyboard (usually in the numeric keypad or function key area) and try to press toggle
- Some notebooks need to press the Fn Num Lock key at the same time to switch back
- If you don't need the numeric keypad function, you can turn off Num Lock directly
This problem is especially prone to occur when using an external keyboard or remote desktop. It is recommended to restart the input method or computer after the settings are completed to confirm whether it is restored.
3. Check input method or third-party software interference
Sometimes third-party input methods (such as Sogou, Baidu, Rime) or certain shortcut key tools (such as AutoHotKey) may modify keyboard behavior, resulting in abnormal key mapping.
Troubleshooting method:
- Switch to the system-owned input method (such as Microsoft Pinyin for Windows or ABC input method for Mac)
- Close or uninstall the recently installed input method or shortcut key tool
- Check for custom shortcut keys or hotkey conflicts
Some input methods will automatically change the keyboard map when switching languages or layouts. It is recommended to turn off the automatic switching function in settings.
4. Check whether there are sticky keys or auxiliary functions are turned on
Accessibility features such as "sticky keys" or "filter keys" on Windows systems can sometimes cause abnormal keyboard behavior. Although it is not common, you can also check it out.
Operation path:
- Open Settings → Accessibility → Keyboard
- Check whether the "Sticky Key" and "Filter Key" are on, and can turn them off if you don't need it.
Basically, these common causes and solutions are all there. You can check it in order, in most cases it is a problem with keyboard layout or input method. If you have tried it and haven't solved it, you can try restarting your computer or resetting the input method settings. It is not complicated but easy to ignore, and it should be done by trying it out.
The above is the detailed content of how to fix keyboard types symbols instead of letters. For more information, please follow other related articles on the PHP Chinese website!

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