This guide assumes you have a valid license key file (.ekb, .txt, or manually entered string) and want to confirm it’s accepted by the system before or after applying it.

Activation: The user installs the software and is prompted to activate it using the licence key. This involves the software sending the key and possibly system information to a verification server.

  1. Open Command Prompt as Administrator – Right-click CMD and select "Run as administrator."
  2. Navigate to the Sidchg directorycd C:\path\to\sidchg
  3. Run the licence verification command – Depending on your version, this may be:

    Verifying SIDCHG Licence Key: Enhancing Software Security

    When you run SIDCHG (e.g., using the /R command for a restart), the tool prompts you for a key: