Insert the tip of an opening pick underneath the rear foot starting at the gap in its recess.

When possible, grab with your fingers and slowly pull to peel it off completely.

When installing a new foot:

Use a spudger to carefully scrape up and remove any remaining adhesive bits.

Use isopropyl alcohol and a microfiber cloth to thoroughly clean all adhesive residue from the foot recesses. Allow the surface to completely dry.

Remove the feet from their backing and firmly press them into place.