VirtualBox claims to be the strongest free virtual machine software. It is not only rich in functions, but also excellent in performance. It is easy to use and can virtualize all Windows systems. A few days ago, netizens? Tide 0 1 1? On 20 15, I shared a practical tutorial on installing VirtualBox virtual machine in Retina Mac Pro. Let's have a look. Before the official operation, we need to make the following preparations:-Go to the link of VirtualBox download page and download two files, namely VirtualBox 5.0. 18 of AMD64, the host of OS X, and all supported platforms of Oracle VM VirtualBox expansion pack-download the ISO image of Windows system. Next, we begin the formal installation: 1. Run the downloaded file VirtualBox.dmg and double-click the first yellow icon. After the installation is completed, we will see the icon displayed in the application. 2. Click the application and follow the steps below to install it. The netizen said that in this process, the memory setting of Windows Advanced Edition should reach at least 2GB. However, you can change this value at any time after installing the virtual machine. 3. After the installation is completed, click the green arrow icon in the upper left corner of the interface. Then, we need to click on the second icon (CD logo) in the lower right corner of the black panel, and select the first item choosediskimage. 4. Select the newly downloaded ISO image file (User? Tide 0 1 1? Download the slimming version of thinpc). It should be noted that there is no response after selecting the file, but when we click the CD icon again, we will see the situation shown in the above picture. 5. We need to make sure that the front of thinpc has been ticked, and the color of CD icon will change. Click the machine option at the top left and select the penultimate item Reset. 6. Then, we can follow the prompts to install Windows, just click Next. 7. After the installation is completed, open the preferences of VirtualBox-Extensions, and install the extension package downloaded on the download page of VirtualBox before. 8. Open the installed Windows interface, click the fifth device in the top status bar, select the last guestadditions, and then restart. 9. attention, at? VirtualBox Manager-Settings-Ports -USB Devices? Under the path of, you should choose the option of USB2.0, otherwise you can't use USB devices.