READ BEFORE BUYING! If you have any questions or are unsure about anything send us a message first. THIS LISTING IS FOR A STEP BY STEP CREATION GUIDE ON HOW TO MAKE MAC OS BOOTABLE USB. BUYER WILL NEED TO FOLLOW GUIDE AND PROVIDE THEIR OWN MAC OS / Macbook. Make a bootable usb flash drive with almost all macOS for Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion, Lion, Snow Leopard. Best made on macbook with macOS Mojave. Note: I am not responsible for any data that you lose if you do not save it prior to re-installing your Mac OS. Included Step By Step Mac OS Creation Guide Not Included -License, COA, Product Key, Serial Number, Mac Os, Usb. Note: As per your MacOS license agreement you are allowed to create ONE backup copy of your Mac OS for your Apple computer The license agreement reads as follows: "Backup Copy. You may make one copy of the Apple Software (excluding the Boot ROM code and other Apple firmware that is embedded or otherwise contained in Apple-branded hardware) in machine readable form for backup purposes only; provided that the backup copy must include all copyright or other proprietary notices contained on the original. Apple Boot ROM code and firmware is provided only for use on Apple-branded hardware and you may not copy, modify or redistribute the Apple Boot ROM code or firmware, or any portions thereof." ETSY COPYRIGHT DISCLAIMER I am the rights holder / copyright owner of this creation guide. The guide is made by me and making copies or resale of this guide is not permitted. Here is a list of system requirements for your mac computer based on the os that you choose. MacOS Mojave MacBook models from early 2015 or later MacBook Air models from mid-2012 or later MacBook Pro models from mid-2012 or later Mac mini models from late 2012 or later iMac models from late 2012 or later iMac Pro (all models) Mac Pro models from late 2013 (plus mid-2010 or mid-2012 models with certain Metal-capable graphics processor) MacOS Version 10.12 (a.k.a Sierra) Compatible Macs: MacBook (Late 2009 or newer), MacBook Pro (Mid 2010 or newer), MacBook Air (Late 2010 or newer), Mac mini (Mid 2010 or newer), iMac (Late 2009 or newer), Mac Pro (Mid 2010 or newer) OS X 10.7.5 or later 2GB of memory 8.8GB of available storage Mac OS X Version 10.11 (a.k.a El Capitan) Compatible Macs: iMac (Mid 2007 or newer), MacBook (Late 2008 Aluminum, Early 2009, or newer), MacBook Pro (Mid 2007 or newer), MacBook Air (Late 2008 or newer), Mac mini (Early 2009 or newer), Mac Pro (Early 2008 or newer) Xserve (Early 2009) Mac OS X Mountain Lion, Lion, or Snow Leopard v10.6.8 already installed At least 2GB of RAM At least 8.8 GB of disk space available Mac OS X Version 10.10 (a.k.a Yosemite) Compatible Macs: iMac (Mid 2007 or newer), MacBook (Late 2008 Aluminum, Early 2009 or newer), MacBook Pro (Mid 2007 or newer), MacBook Air (Late 2008 or newer), Mac mini (Early 2009 or newer), Mac Pro (Early 2008 or newer), Xserve (Early 2009) Mac OS X Snow Leopard v10.6.8 or later already installed At least 2GB of RAM At least 8GB of disk space available Best Effort Mac OS X Version 10.9 (a.k.a. Mavericks) Compatible Macs: iMac (Mid-2007 or later), MacBook (13-inch Aluminum, 2008 or 13-inch, Early 2009 or later), MacBook Pro (13-inch, Mid-2009 or later), MacBook Pro (15-inch or 17-inch, Mid/Late 2007 or later), MacBook Air (Late 2008 or later), Mac mini (Early 2009 or later), Mac Pro (Early 2008 or later), Xserve (Early 2009) Mac OS X Mountain Lion, Lion, or Snow Leopard v10.6.8 or later already installed At least 2GB of RAM At least 8GB of disk space available Mac OS X Version 10.8 (a.k.a. Mountain Lion) Compatible Macs: iMac (Mid 2007 or newer), MacBook (Late 2008 Aluminum, Early 2009 or newer), MacBook Pro (Mid/Late 2007 or newer), MacBook Air (Late 2008 or newer), Mac mini (Early 2009 or newer), Mac Pro (Early 2008 or newer), Xserve (Early 2009) Mac OS X 10.6.8 or OS X Lion installed At least 2GB of RAM At least 8GB of disk space available Mac OS X Version 10.7 (a.k.a. Lion) Mac computer with an Intel Core Duo, Core i3, Core i5, Core i7, or Xeon processor Mac OS X 10.6.6 or later to install via the Mac App Store, an internal or external DVD drive, or install using an OSX Lion USB Thumb Drive At least 2GB of RAM At least 7GB of disk space available Mac OS X Version 10.6 (a.k.a. Snow Leopard) Mac computer with an Intel processor An internal or external DVD drive At least 1GB of RAM (additional RAM recommended) A built-in display or a display connected to an Apple-supplied video card supported by your computer At least 5GB of disk space available or 7GB of disk space if you install the developer tools