Launch the program. In the top menu bar, click on Help (Windows) or Silhouette Studio (Mac).
The most common reason for an "invalid key" error is a typo. Serial numbers are often long and can be confusing, mixing letters and numbers. It is highly recommended to the code directly from your email confirmation rather than typing it manually. silhouette studio designer edition serial
If lost, the key is permanently stored in your account details under the "License Keys" tab on the official Silhouette website [2, 5]. Launch the program