Before starting, verify your PC specifications and prepare your environment to avoid common errors.
If you experience flickering or disappearing toolbars:
| Problem | Likely Cause | Solution | |---------|--------------|----------| | Setup fails to start | Missing .NET 3.5 | Enable via Windows Features | | License not found | Driver signature enforcement | Reboot with driver signing disabled | | Slow performance / UI glitches | Old OpenGL calls | Run in Windows 7 compatibility + disable visual themes | | Cannot save designs | Permissions on Program Files | Install Wilcom to C:\Wilcom instead of default | | USB key light on but not detected | USB selective suspend | Power Options → Disable USB selective suspend |
When prompted for the , if you are using a physical dongle, plug it in now.
Extract the downloaded installation folder if it is in a ZIP format. Find the Setup.exe file within the Wilcom_4.2 folder.
