To ensure a valid activation and support, it is recommended to use official channels: Where to Buy : The primary source is the official StartAllBack website or its predecessor StartIsBack . Authorized resellers like APSGO (软购)
: Click the activation field and enter your unique license key received via email. Purchasing a License Official licenses are available for purchase through the StartAllBack website or the original StartIsBack site 1 PC Personal License 3 PCs (Family Pack) StartIsBack startallback activation key exclusive