1 Download Key Generator unclear key finder. This is a php file, put the characters you are not sure about in the arrays.

   the only possible characters are these (others are rejected): 2 3 4 5 6 7 8 9 B C D F G H J K M P Q R T V W X Y

For example, TGTVX-QXBBJ-MJBMF-PBB4R-FMTT6 (if you are not sure if the last digit is 6 or G, you can use array(“G”, “6”), in the script)

2 Upload the finished php file to the root of your web site, then type yoururl/test.php in your web browser, it will generate all the possible keys.

3 Copy all the keys to a text file, and then using excel to convert it to a text file that has one key per line.

4 Download Ultimate PID Checker 

5 Select the product and link the converted text file to PID checker.

6 Pay attention to the result, it will display the correct key info if it  “finds” the valid key.