Choose the version that matches your region (e.g., USA, Japan, or Europe). Version v2.00 is generally recommended for the best compatibility. Click Close or Finish . Summary of Legality
If you are running the emulator for the first time, the wizard will ask you to select a BIOS. If you've already passed that stage: Open PCSX2 . Navigate to Settings > BIOS . add bios to pcsx2