Before you begin the download, ensure your target hardware is supported. Also, check the file size: the full OS X Mavericks installer should be approximately in size. If the file you are downloading is significantly smaller, it is likely incomplete or corrupted.
Before downloading and installing Mac OS X Mavericks 10.9, ensure that your Mac meets the system requirements: mac os x mavericks 10.9 iso and dmg image download
Regardless of where you download from, compare the file size: the complete Mavericks installer is roughly 5 GB . If your download is significantly smaller (e.g., a few hundred megabytes), it is either an update only or a corrupted/incomplete file. Before you begin the download, ensure your target