It sounds like you're looking for a reliable solution to run macOS as a guest operating system inside VMware Workstation 12 on a Windows or Linux host.
First, a critical clarification:
VMware products do not natively support macOS as a guest OS on non-Apple hardware. The "unlocker" you’re referring to (commonly version 2.0.8) patches VMware to bypass this restriction, enabling macOS installation on standard PCs.
Below is a solid, technical breakdown of the topic — covering what it is, how it works, limitations, and a step-by-step guide.
Why Do You Need an Unlocker for VMware 12?
VMware Workstation Pro 12 is a powerful hypervisor, but due to Apple’s licensing agreements (which state macOS may only run on genuine Apple hardware), VMware disables macOS guest support by default on Windows and Linux hosts.
Without an unlocker:
- macOS does not appear in the "Guest Operating System" list.
- Even if you manually create a VM, it will fail to boot or crash during installation.
With VMware 12 Unlocker 208, the tool patches the VMware VMX files and adds Apple’s SMBIOS signatures, tricking VMware into believing it is running on authorized hardware.
What Is VMware 12 Unlocker 208?
The VMware 12 Unlocker 208 is a community-developed patch tool designed to remove the artificial restrictions VMware places on running macOS virtual machines. The number "208" typically refers to a specific build or version of the unlocker script (often associated with the work of developers like Donk, Zenith432, or similar open-source contributors).
When you combine VMware Workstation 12 with Unlocker 208, you unlock the ability to:
- Create macOS VMs (Mavericks, Yosemite, El Capitan, Sierra, High Sierra, and later with tweaks).
- Access Apple’s native bootloader (EFI) inside VMware.
- Enable support for macOS-specific kernel extensions.
The term "for Mac OS Top" in the keyword suggests users are looking for the best or top-performing method to run recent or stable macOS versions using this specific toolset.
Key things to know (important context)
- VMware Workstation 12 is obsolete – Released in 2015, last update was around 2016–2017. Modern macOS versions (Big Sur and newer) are not officially supported as guests on WS12, even with unlocker patches.
- Apple’s EULA – Running macOS on non-Apple hardware violates Apple’s software license agreement. The unlocker exists but is legally grey and mainly used for testing/hackintosh scenarios.
- Security risk – Old unlockers and VMware 12 have known vulnerabilities. Using them on a modern OS/hardware may cause instability or security issues.
- Modern alternative – For running macOS VMs legally, use a real Mac with VMware Fusion (Apple-supported) or macOS Virtualization Framework (with tools like VirtualBuddy). For non-Apple hardware, OpenCore + KVM (Linux) is more common today.
Top Steps to Use Unlocker 208 with VMware 12
Step 5: Verify Patching Success
Launch VMware Workstation. Create a New Virtual Machine. In Guest OS selection, you should now see Apple Mac OS X with versions from 10.7 to 10.13 (possibly 10.14 with manual edits).
