you are comfortable tweaking drivers and compatibility settings. For basic fiber marking, it works stably after the steps above.
Do not use old CD-ROM versions from 2014. For Windows 11, you need (released 2021+). Version 2.14.9 and earlier are unstable. ezcad2 windows 11
Do not let Windows 11 automatically search for drivers. Connect your laser to the computer via USB and power it on. Open "Device Manager." ezcad2 windows 11