While trying to install macOS Catalina 10.15 on VMware Fusion on Mac. I got the error that the VT=x/EPT inside the Virtual machine is disabled. I tried a lot and finally, I figure out the issue to fix that. Even this can be count as a common issue inside the VMware Fusion to do it. And this error can cause while you have to install Windows 10 or any other OS on VMware Fusion on Mac. Follow the Methods which I am going to show you “how to Enable VT-x/EPT on VMware Fusion in Virtual Machine”.
VMware has already done a great job for the developers to test the different OS on Mac and Intel PCs. VMware Fusion comes for macOS and VMware Workstation for Windows users. Also, VMware Workstation and VSphere when it comes to allowing the users to run other Hypervisor applications on a Virtual machine on Mac.
Enable VT-x/EPT on VMware Fusion in Virtual Machine
As above mentioned that we sort out the solution to Enable VT-x/EPT on VMware Fusion in Virtual Machine. Therefore, be with us to install macOS Catalina on VMware Fusion on Mac. Just by bypassing this issue you will be able to install macOS Catalina on VMware Fusion on Mac.
Step 1. To enable this feature completely, power of the Virtual machine if it’s already running.

Power Off the virtual machine
Step 2. Once that is done, click on the VMware Fusion settings properties. When the properties page opened hit on “Processors & Memory”.

Processors & Memory
Step 3. When the Processors window opened, click on Advanced options. And check the box next to “Enable Hypervisor applications in the virtual machine.
- Enables running modern virtualization applications by providing support for intel VT-x/EPT inside this virtual machine.

Enable VT-x/EPT
That’s it now go ahead and power the VMware Fusion. Again if it didn’t work then let me know below in the comment section.
Enable Virtualize Intel VT-z/EPT or AMD-V/RVI
To enable the Virtualization Intel and AMD engine on VMware Workstation on PC. Select the created virtual machine and hit on “Edit the Virtual machine settings1”.

Edit virtual machine setting
Once the virtual machine setting pop-up clicks on the hardware for enabling the Virtualization. Indeed the option is by default disabled. However, click on the Processors tab and check the box of “Virtualize Intel VT-x/EPT or AMD-V/RVI and at last click OK to save changes.

Virtualize Intel VT-x/EPT or AMD-V/RVI