## Setting Up VirtualBox (Free)

Oracle VirtualBox is the most popular free hypervisor.

### Installation Steps
1.  Download from virtualbox.org.
2.  Install the **Extension Pack** (Critical! This gives you USB support and better drivers).
3.  Enable **Virtualization Technology (VT-x / AMD-V)** in your BIOS.
    *   *Error*: If you get "Verr_VMX_No_VMX", restart computer, go to BIOS, enable VT-x.

### Common Settings
*   **RAM**: Give it 2GB-4GB (Don't starve your host).
*   **CPU**: Give it 2 Cores.
*   **Video Memory**: Max it out (128MB) for smooth UI.