These are the screws that hold the lock and the door together.
Removing an old door lock.
Before you remove the lock mechanism from the door you may want to score the gap around the lock front with a razor to free any paint that may be attached to the metal.
Press this wire with your screwdriver to release the interior half of the lock then pull the exterior half off by hand.
Removing locks from the exterior side.
If there is paint on the lock face then when you remove the mechanism the paint may stick to the lock face and peal off the wood of the door.
Start by using your phillips head screwdriver to remove any visible screws from the interior side of the door.
In just three quick steps you can remove an existing cylinder lock for re keying or replacement.
Shop the home depot for door knobs interior doors and more.
Undo the two mounting screws holding the doorknob in place.
Gently pry it off or pull and twist it away from the door.
Check for small notches or depressions in very old door knobs.
Slip a screwdriver in to release the knob which will expose a length of wire wrapped around the remaining trim.