If your Mac is dead or unbootable, you can create the bootable USB from a Windows PC using a tool called TransMac.
Because Apple no longer hosts Mavericks natively on the modern Mac App Store, finding and preparing these images requires specific steps. This comprehensive guide provides verified extraction methods, conversion tutorials, and implementation steps to safely install OS X Mavericks today. 1. What Are DMG and ISO Files? mac os x mavericks 10.9 iso and dmg image download