lock 9 light is ON

The illuminated lock icon with “9” is the Num Lock (Number Lock) indicator, meaning the keyboard’s numeric keypad is currently set to type numbers. ^1^

• Light on: the number pad enters numbers.
• Light off: those keys may perform navigation functions such as Home, End, Page Up, Page Down, or arrow movement.
• Press Num Lock once to switch it off or on. On a compact Dell laptop keyboard, the shortcut may require Fn + the key marked Num Lock/NumLk.
• This is a normal keyboard setting, not a Windows 11 fault.

On some Dell wireless keyboards, the LED lights only briefly to conserve battery even though Num Lock remains enabled. ^2^

To hear a sound whenever Num Lock changes, open Start → Settings → Accessibility → Keyboard, then enable Toggle keys. ^3^

References

1. Keyboard Troubleshooting and Usage: The Definitive Guide - Dell
2. Dell Wireless Keyboard Caps Lock or Number Lock LED Does Not Stay Lit
3. [Windows 11](https://support.microsoft.com/accessibility/windows/make-your-mouse-keyboard-and-other-input-devices-easier-to-use#make-the-keyboard-easier-to-use)