EXPECTED RESULT: Should be able to remove Dassault Systemes Software Prerequisites x86 on uninstalling CATIA. Remove CATIA V5R18(GA)SP05 from Add/Remove Program PROBLEM: In spite of not installing any CATIA Product, Can not remove Dassault Systemes Software Prerequisites x86. I have not installed any product of dassault. Its saying removing dassault systemes software Prerequisites x86-圆4 is forbidden because some dassault systemes is still installed. Uninstalling relies on Windows-compliant tools enabling anyone familiar with Windows procedures and concepts to uninstall the software without. › Removing Dassault Systemes Software Prerequisites Is Forbidden ► ►Ĭustomer used it for a while 3.