Sometimes the software is installed, but your computer "can't see" the engraver. This is usually a missing USB-to-Serial driver.
Finding the right software for your laser engraver can be a bit of a maze, especially since many "Master" series machines (like the popular Master 2 or Master 3 models) use specific proprietary or open-source drivers to function correctly. engraver master software download link
Common for most budget engravers. Download here . Sometimes the software is installed, but your computer
LightBurn is widely considered the best "all-in-one" software for layout, editing, and control. It works with most GCode-based engravers. Sometimes the software is installed
This is paid software, but they offer a 30-day free trial with full functionality. 2. LaserGRBL (The Best Free Alternative)