The inability to use the keyboard in a specific application is usually caused by software conflicts or setup issues. 1. First, confirm whether it is the input limit of the application itself, such as read-only mode or shortcut key locking status, try to switch the tab page, close pop-up windows, or restart the application; 2. Check whether the input method or language settings conflict, it is recommended to switch to the English input method and turn off third-party input method; 3. Check whether there are background programs that occupy keyboard resources, turn off remote control, screen recording software and other tools that may intercept the keyboard; 4. Finally, try to reset or update the application and system settings, including reinstalling the application, updating the system driver or restoring the keyboard default settings. Following the above steps to check generally solves the problem.

The keyboard not working in a specific app is a common but headache. This situation is usually not a hardware failure, but a software-level conflict or setup problem. The key is to check which link is wrong.

Here are some situations you may encounter and the corresponding solutions:

1. Confirm whether it is the input limit of the application itself

Some applications restrict keyboard input in specific interfaces, such as games, full-screen video players, or pop-up interfaces of certain professional software (such as Photoshop).

• Check if it is currently in "read-only mode" or "shortcut key locked state"
• Try to switch to another tab or close pop-up window before testing the keyboard
• Check out the application's help document or official website forum to see if there is any similar feedback

If you are using a design or development software, sometimes accidentally touching a shortcut key will also cause the input to be blocked. Restarting the application is the most direct way.

2. Check whether the input method or language settings conflict

Sometimes Chinese input method can cause the keyboard to be unresponsive in English software, especially in some desktop applications developed abroad.

Try the following:

• Switch to English input method (Windows: Win Space ; Mac: Cmd Space )
• Turn off all non-system-owned input methods, and only basic English input is retained
• Change the default input language to English in system settings (for temporary test)

Especially when using third-party input methods such as Sogou and QQ pinyin, compatibility issues are more likely to occur.

3. Check whether any background program occupies keyboard resources

Some software (such as remote control tools, screen recording software, and macro tools) may intercept keyboard events, causing the foreground application to fail to receive key signals.

You can try:

• Close unnecessary background programs, especially those that require global hotkeys
• Temporarily exit the antivirus software or firewall (sometimes they block unknown input)
• Use Task Manager (Windows) or Activity Monitor (Mac) to see if there are any exceptions

If you suspect that a conflict caused by a specific tool can be closed one by one and then tested the keyboard response of the target application.

4. Reset or update application and system settings

If none of the above methods are useful, it may be that the application itself has a corrupted configuration file, or an error in the input service at the system level.

Consider:

• Uninstall and reinstall the app
• Update the operating system and drivers (especially keyboard drivers)
• Create a new user account and test whether it is normal after logging in

For Mac users, you can also try going to System Preferences > Keyboard and click "Restore Default Settings".

Basically, these are the investigation directions. Most of the time it is not that the keyboard is broken, but that the software environment is complex, causing the input to be intercepted or ignored. Exclude them one by one according to the steps, and the reason can generally be found.

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