See step 7 above in hang a mirror using hooks for information on how to install drywall anchors and how to remove unwanted drywall anchors.
How to hang up a wall mirror.
Hold your mirror up to the wall to see how much space it will take up.
Set the mirror down.
Find a place to hang the mirror.
Note if you ve used wood glue to secure the mirror s cleat be sure to wait until the glue is completely dry before hanging the mirror.
Mark the location of the top edge and the center of the frame.
Lift the mirror into place and lock the two cleat hooks together.
Finding a stud can be useful but not necessary if you have a strong enough hanger.
Use anchors if the bottom cleat isn t lined up over wall studs.
Place a scrap piece of wood that is approximately half as long as the mirror is wide underneath the hanging wire on back of the frame.
Hold the mirror against the wall at the desired position.