Shift key pops up a menu
To avoid this happening in the future, click the settings button on the window referenced above. When the accessibility options screen appears, click the "Settings" button in the "Sticky Keys" portion of the window. On the next window (should be labeled "Settings For Sticky Keys"), uncheck in the box that says "Use shortcut", then click on "Apply", and close the windows. The problem should not occur once the shortcut has been disabled.
you also need to disable filter keys.
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