How to fix sticky keys

You must increase the leadtime before Windows considers your keeping a key pressed down means you want to repeat it.

Open Keyboard Properties by clicking the Start button , and then clicking Control Panel. In the search box, type keyboard, and then click Keyboard.

Under Character repeat, move the Repeat delay slider to the right to increase how long you must hold down a key before the keyboard character repeats, and then click OK. You must increase the leadtime before Windows considers your keeping a key pressed down means you want to repeat it.
Open Keyboard Properties by clicking the Start button , and then clicking Control Panel. In the search box, type keyboard, and then click Keyboard.
Under Character repeat, move the Repeat delay slider to the right to increase how long you must hold down a key before the keyboard character repeats, and then click OK.