Vmware Fusion 8 Catalina [better]

You cannot right-click your way past this one. Open Terminal and run:

Running on macOS Catalina is not officially supported and often results in critical failures, such as a permanent black screen upon launching virtual machines . Because Catalina (macOS 10.15) introduced major architectural changes—including the complete removal of 32-bit application support and enhanced security protocols—older versions like Fusion 8 are essentially broken on this platform. Why VMware Fusion 8 Fails on Catalina vmware fusion 8 catalina

Catalina changed how network bridging works, often breaking the default network settings in Fusion 8. You cannot right-click your way past this one

Upon opening an old VM in a newer Fusion version, you may be prompted to upgrade the virtual hardware. Note that once upgraded, the VM may no longer open in Fusion 8. Why VMware Fusion 8 Fails on Catalina Catalina

When you first launch Fusion 8 on Catalina, you will likely see a pop-up stating: "System Extension Blocked."