Chromebook Recovery Utility Creates Recovery Media for Your Chromebook
Chromebooks are pretty reliable, but problems do happen. Create a recovery drive using the Chromebook recovery utility so you can reinstall your operating system if something goes wrong.
Unlike PCs or Macs, which have a recovery partition, many Chromebooks don’t. If you install this utility on your Chromebook, it will detect your make and model. If you install it in Chrome on your Mac or PC, you will be able to specify the make and model of your Chromebook. Armed with a 4GB flash drive or SD card, it will create recovery media for you so you don’t have to worry when things go wrong.
Chromebook Recovery Utility | Chrome Web Store via OMG Chrome