To remove hard nail polish, you will need to use a special nail polish remover. You can find these at most drug stores and beauty supply stores. Start by soaking a cotton ball or pad with the remover, then press it against the nail for a few moments. Once the polish has softened, you can use an orange stick or cuticle pusher to gently scrape off the polish. If the polish is still difficult to remove, you can soak the cotton pad in the remover and place it directly on the nail for a few more minutes.