1. Go to regedit.exe  then find and delete SimLab Composer ####

2. Go to app data folder %Appdata%

Go to -> SimLab -> Delete this folder SimLab Composer ##

3. Uninstall SimLab Composer from the control panel.

After that use your software key to activate the application, or send us new manual license request to activate the SimLab Composer, including your software key.