1.檢查物理問題，2.重置鍵盤輸入，3.使用屏幕鍵盤測試，4.關(guān)閉輔助功能。鍵盤按鍵像被卡住通常由軟件故障、灰塵或硬件問題導(dǎo)致，首先用工具輕抬按鍵清理碎屑，若鍵感粘滯則清潔或更換開關(guān)；其次在系統(tǒng)中卸載鍵盤驅(qū)動並重啟以重置輸入；接著通過內(nèi)置的屏幕鍵盤判斷問題來源；最後關(guān)閉如粘滯鍵等誤啟的輔助功能排查解決。

If your keyboard acts like a key is stuck even when you're not pressing it, it's usually due to software glitches, dirt under the keys, or hardware issues. The good news is that most of the time, it's fixable without needing to replace the whole keyboard.

Check for Physical Issues First

Before diving into system settings or software fixes, inspect the keyboard itself. Dust, crumbs, or gunk can get stuck under keys and cause them to register as pressed continuously.

• Try gently lifting the problematic key with a flat tool (like a plastic spudger or even a strong piece of plastic from a takeout container).
• Be careful not to break the keycap or its hinge.
• Once lifted, blow out any debris or use a cotton swab lightly dampened with rubbing alcohol to clean around the base.

If the key feels sticky or doesn't spring back quickly after being pressed, that could also be the culprit. In that case, cleaning might help — or the switch itself may be worn out if it's a mechanical keyboard.

Reset Keyboard Input on Your System

Sometimes the issue isn't physical at all — it's just how your operating system thinks the keyboard is behaving. Restarting your computer often clears up these hiccups.

On Windows:

• You can try unplugging and replugging the keyboard (or restarting Bluetooth if it's wireless).
• Go to Device Manager > Keyboards, right-click your keyboard, and choose "Uninstall device." Then restart your PC — Windows will reinstall the driver automatically.

On macOS:

• Try resetting the NVRAM by restarting and holding Command Option PR until you hear the startup sound twice.
• Also, go to Apple Menu > System Settings > Keyboard, and make sure no accessibility features like “Slow Keys” are turned on accidentally.

Test with an On-Screen Keyboard

Both Windows and macOS have built-in on-screen keyboards you can use to test whether the problem is with the physical keyboard or something else.

• On Windows: Open Start > Search for "On-Screen Keyboard" and run it.
• On macOS: Go to System Settings > Accessibility > Keyboard and enable the "Show Keyboard Viewer in menu bar."

Try typing using the on-screen version. If the same key repeats without being pressed, then it's likely a software or accessibility setting causing the issue. If only the physical keyboard misbehaves, it's definitely hardware-related.

Watch Out for Accessibility Features

Some built-in features are designed to help users who have difficulty holding down keys, but they can sometimes activate by accident.

In Windows:

• Go to Settings > Ease of Access > Keyboard.
• Make sure Sticky Keys, Filter Keys, and Toggle Keys are all turned off.

In macOS:

• Under Accessibility > Keyboard, check if “Mouse Keys” or “Sticky Keys” are enabled — disable anything you don't need.

These settings can change how your keyboard behaves, especially if you've accidentally tapped a modifier key several times in a row.

That's about it. Most of the time, the problem comes down to one of those areas — either something stuck under the key, a driver glitch, or an accessibility feature turned on by mistake. It's not complicated, but it helps to check each possibility step by step.

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