If the program becomes unstable on start-up, you can start it in Safe mode. This is done by pressing and holding down the Shift button while the program starts.
When starting in safe mode, the user settings (e.g. the settings in the Side Panel) are deleted and cannot be restored. Your data stored in the Navigation Area is not deleted. When started in safe mode, some of the functionalities are missing, and you will have to restart the CLC Genomics Workbench again (without pressing Shift).