Stick Keys //free\\

When Sticky Keys is enabled, the input logic changes:

Sticky Keys is an accessibility feature that modifies the input behavior of modifier keys—specifically Shift, Ctrl, Alt, and the Windows/Command key. When activated, these keys remain "stuck" in a pressed state until a subsequent key is pressed, allowing for one-handed operation of complex shortcuts. stick keys

If you want to stop the pop-up from ever appearing again, uncheck the box that says "Allow the shortcut key to start Sticky Keys." Troubleshooting: Why is my keyboard acting "Sticky"? When Sticky Keys is enabled, the input logic

You panic. You hit the backspace, but the key is still down. The cursor jumps and stutters. You stab at the key again, harder, as if punishment will restore obedience. Sometimes it works. Sometimes you have to pry it up with a fingernail, feeling the brittle plastic flex and threaten to snap. You panic