To activate Stata, you need a valid License and Activation Key
Your license key determines which "flavor" or edition of Stata you can access: Installation guide stata license and activation key
Upon first opening, the "Initialize License" dialog will appear. To activate Stata, you need a valid License
Fill in your name and organization, followed by the Serial Number, Code, and Authorization exactly as they appear on your PDF. Finish & Register: Launch Stata : Open Stata on your computer
Installation guide: Setting up the license (Windows) - Stata