So the first step is to create a bootable USB installer for macOS Sierra to install Mac OS from it on your PC, you can create bootable USB Installer with UniBeast but still, you need a macintosh to download and create macOS Sierra bootable USB Installer. Autodesk 123d free download for mac forum. So here we’re to show you how to create bootable USB Installer for macOS Sierra on.

This type of DVD has two layers, which increases the available recording space to roughly 8.5 GB. The OS X Mountain Lion installer is just a smidgen too big to fit on a standard DVD. Dual-layer DVDs, also called DVD9, are available just about anywhere standard DVDs are sold.

You can also use a USB flash drive that can hold 5 GB or more (8 GB and 16 GB are commonly available sizes) as your bootable media. • A valid copy of OS X Mountain Lion, which you must purchase and download from the Mac App Store. It will be stored in the Applications folder on your Mac; the file is called Install OS X Mountain Lion. Please note that you must create the bootable copy of the installer before you actually perform the Mountain Lion installation because the Mountain Lion setup process deletes the files you need to make the bootable installer copy. • Open a Finder window, and navigate to your Applications folder ( /Applications).

• Scroll through the list of files and locate the one named Install OS X Mountain Lion. • Right-click the Install OS X Mountain Lion file and select Show Package Contents from the pop-up menu. • You will see a folder named Contents in the Finder window.​ • Open the Contents folder, and then open the SharedSupport folder. • You should see a file named InstallESD.dmg. • Right-click the InstallESD.dmg file and select Copy InstallESD.dmg from the pop-up menu. • Close the Finder window and return to the Desktop. • Right-click on an empty area of the Desktop and select Paste Item from the pop-up menu.

• Insert a blank DVD into your Mac's optical drive. • If a notice asks you what to do with the blank DVD, click the Ignore button. If your Mac is set up to automatically launch a DVD-related application when you insert a DVD, quit that application. • Launch Disk Utility, located in /Applications/Utilities. • Click the Burn icon, located in the top right corner of the Disk Utility window. • Select the InstallESD.dmg file you copied to the Desktop in an earlier step.​ • Click the Burn button. • Place a blank DVD into your Mac's optical drive and click the Burn button again.

• A bootable DVD containing OS X Mountain Lion will be created. • When the burn process is complete, eject the DVD, add a label, and store the DVD in a safe location.