Being Tricky
The short answer
Laptop keyboard not working?
At a glance
About 20 minutes · Medium · For Windows
Key point 1 of 5
While you troubleshoot, you can type with the mouse or touchpad.
Key point 2 of 5
A software glitch that a restart clears.
Key point 3 of 5
Microsoft says Filter keys sets the keyboard to ignore brief or repeated keystrokes.
Key point 4 of 5
If keys work but type the wrong characters, such as @ and " swapped, the layout is wrong.
Key point 5 of 5
On some laptops, Num Lock turns a block of letter keys into a number pad.
You might ask
Why did my laptop keyboard suddenly stop working?
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Being Tricky