
Hold down the Option key when you see the Apple logo. Restart your Mac, with the flash drive plugged in.Now we will make use of the bootable flash drive to perform a clean installation. Quit Terminal but keep your USB flash drive plugged in. Here’s how your Terminal should look like when the copying process is done. Note #1: It may seem like Terminal is idle or not responding after you hit Enter (most likely like the following screenshot), but that is perfectly normal. Sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ OS\ X\ Mavericks.app -nointeraction This will copy Mavericks’ installation files into your USB flash drive. Launch Terminal, paste the following code in and hit Enter.

Look for your flash drive’s name on the left panel, go to Erase tab, select “Mac OS Extended (Journaled)” format and click Erase.Plug in your USB flash drive, open Disk Utility.Note #2: The download may take from 30 minutes to few hours depending on your Internet connection. Note #1: Login with your crendentials may be required. Hold down the Option key, click Free Upgrade to download a copy of OS X Mavericks.Launch App Store, go to the Updates tab.Then we will transfer the installer (packages and files) to our USB flash drive and make it bootable. Create a bootable OS X Mavericksįirst we will download a copy of the OS X Mavericks. A USB flash drive, empty and format-able, with a storage capacity of at least 8GB.Īll good? Let’s roll.

