Mac OS X Mavericks: bootable USB-Stick create
First you need to download Mavericks. You can get it for free in the App Store for your Mac:
- Open the App Store from the Spotlight.
- Type in the search box at the top right of "Mavericks" or navigate through the category "Apps from Apple" to "Mavericks".
- Press on "Load". You installed Mavericks already, a warning appears. Confirm the Dialog to start the Download. This can take time depending on the Internet connection for a very long time.
- The Download is complete, start the Installation of Mavericks automatically. You can exit directly.

Mac OS X Mavericks
Bootable create USB Stick using "disk maker X"
The fastest way to create a bootable USB-Stick using "disk maker X". The Free Tool takes care of all the tasks. For this you need a USB Stick with at least 8 GB of memory.
- Install the Free Tool "disk maker X" and start it.
- Select Mavericks as the Version of OS X that you want to install.
- "Disk maker X" will automatically search for the location where the installation file is saved. If you have downloaded Mavericks via the App Store, this is your program-folder. Confirm the question with "Ok".
- In the Next step, the App asks for a USB flash drive on which Mavericks is installed. Plug your Stick to the computer and select it.
- "Disk maker X" deletes your USB-Stick and copied Mavericks on it. This can take a few minutes.

Disk maker X to create the USB Stick
For professionals: Boot-Stick using the Terminal to create
You want to install a separate program, you can create the bootable Stick via the Terminal:
- You can start the Terminal from the Spotlight.
- Type the command "sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/create-install-media --volume /Volumes/Name-of-USB-Sticks/ --applicationpath /Applications/Install\ OS\ X\ Mavericks.app/ --nointeraction" is an. The "VOLUME_NAME" replace with the name of your USB-Sticks. The dashes are two hyphens (- -).
- Then enter your password to confirm the Changes. Note that all of the files on the USB Stick will be erased.
- You can delete the installation file in the folder "programs" now.
You should the Mac new aufetzen need to, you can get your data from a Time machine Backup restore.