: Disable your firewall or antivirus temporarily during activation. They can block iTools from verifying the key online.
: Open iTools and look for the "Purchase" button or the Account/User icon in the upper right corner of the interface.
Visit the official iTools website ( itools.cn or thinkskysoft.com ) and download the appropriate version (Version 1 or Version 2). Be careful to distinguish between different versions:
: Double-check for typos. Ensure you are entering the key for the correct software version, as version 1 keys will not work on version 2.