Do not download from third-party "crack" sites. The official source is the QElectroTech portal on GitHub or the official QElectroTech website (qelectrotech.org).
: Open the folder and run Lancer QET.bat (Windows) or the equivalent executable to start the program. QElectroTech Portable
QElectroTech Portable is the "ready-to-use" version of the free, open-source QElectroTech (QET) software designed for creating electrical, hydraulic, and pneumatic diagrams Do not download from third-party "crack" sites