Good question. If it is stuck because you spilled water or something on it, turn it upside down and let it dry out. That usually works for me, but this time two keys remained stuck, and it was only water. The rest of the keys recovered.
If you press the "L" key, and it logs off, then you are probably pressing the "Ctrl+L" combination. Check to see if your "Ctrl" key is stuck.
Put it in reverse.
To fix a stuck piano key you really should call a piano technician. There are so many reasons why a key may stick. It may be very simple, but it may also be extremely difficult and time consuming. You many need to locate a piano technician in your area.
When trunks get older, sometimes the latches get stuck. To fix them a person needs to add oil to the latch to loosen up the parts of the lock and turn the key hard.
On a label stuck to your computer or on the information accompanying the Windows 8.1 CD.
CTRL+ALT+up arrow key
The key is worn out , u need to try pulling out w/pliers ,use a newer key
Key is stuck in ingnition
A key on the key board is stuck in the down position
The most effective way to de bug a 'stuck' mouse is to restart your computer.
try ctrl alt and the up arrow key
you fix it by pressing f11 on your key board. Then the screnn is back to normal.