You may not be able to use the application if the application is not installed. When you install the antivirus or any application for this matter, you have to make sure that the installation is complete, before you close the installation wizard. This issue can come in different variants ranging from the antivirus failing to start and a full-blown Blue Screen of Death error (BSoD). Why Do I Face The Avast Won’t Open Problem On My Windows 10 PC?
Solutions To The Avast Won’t Open Issues On Your Windows PC.Why Do I Face The Avast Won’t Open Problem On My Windows 10 PC?.