| Issue | Solution | |-------|----------| | "Invalid license key" | Re-check for typos, spaces, or dashes. Copy-paste exactly. | | "Key already used" | License is for 1 PC only. Deactivate from old PC first (if available). | | No activation option | You may have a free/trial version. Download the full version from official site. | | Offline activation | Some versions offer offline file (send machine code to support). |

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If you no longer have access to the old machine, contact support to request an activation reset.

ViWizard is a powerful tool for converting and editing video and audio files. To unlock its full potential, you need to install a valid license key. This guide will walk you through the process of installing a ViWizard license key.