Zeros are usually narrower (0) than capital O's (O). If you see hyphens (-), then you need to include the hyphens as shown. This means if you see capitalized letters, you need to input capitalized letters. * Make sure the value you have input is exactly as shown. Here are some tips for inputting serial numbers that apply generally to all software: Input Exactly as Shown You have to activate the software before you will be able to use it.