Start the software called BAD DAY, then follow the above instructions to operate. When above shows place your finger on the scanner,then put your finger on the middle fingerprints window of screen , waiting for software start-up scanning. After software scanning, screen will appear the test results. Each finger'fingerprint is different , how do we know to scan which? The answer is each finger represent which day should test. For example: the thumb is tested on Monday, and index is tested on Tuesday, middle finger is tested on Wednesday , and so on, on Saturday and Sunday, we'll need two fingers together ,thumb and index for Saturday, index and middle finger for Sunday . Of course, software lucky day is just a prediction game, whether it hints your BAD DAY how remote, as long as you work hard, everyday is your Lucky DAY.