It does this by modifying some core VMware system files. OS X Unlocker essentially patches the installed VMware product, so that Mac OS X can be installed. It replace the program file of older version to newer version.The latest version of unlocker 2.0.7 works well in VMWare workstation 11 and also in the version 12. VMWare unlocker acts its role here to load Mac OS X over VMWare virtual machine on windows 10, 8.1 and 7. The unlocker program hacks the VMware binary to open up the OS X guest features. OS X support is built in to every VMware hypervisor product, but it's coded to prevent exposing it unless you're running on Apple hardware. Firstly make sure VMware Workstation application is closed completely otherwise the VMware. Step 3: Unlock VMware to Install macOS Catalina on Windows. Install VMware Workstation Pro 15.5.x or VMware Player 15.5.x After downloading the VMware Workstation pro/player, run the setup and follow the prompt leaving all the options as default. Your VMware Workstation will now recognize Mac as a new OS. After you have successfully unlocked Mac OS X Operating System. Alternatively you can also try to use this VMware Unlocker if it has failed on you. Navigate into the VMware Unlocker – Mac OS X Guest folder VMware 8.x Series VMware Workstation Unlocker – Windows.