![]() ![]() iBoysoft Mac Data Recovery is one of a few APFS data Recovery tools that enable you to recover lost data from unbootable APFS volumes, recover lost data from corrupted APFS boot drives, recover lost data from unmountable APFS boot volumes, etc. When you upgrade to macOS Catalina or Mojave, the system disk will automatically convert HFS+ to APFS, so you need a professional APFS data recovery program to recover lost data back. If you didn't back up important data, it's highly recommended to get files off a MacBook that won't turn on before fixing the "You cannot upgrade this version of macOS because a new version is installed" error. Under this circumstance, the only fix is to erase the system disk and reinstall macOS in macOS Recovery mode. Before fixing: Recover lost data from unbootable Mac computer However, Mac will refuse to repair or reinstall the newer OS with the older installation image in macOS Recovery mode and give the error message: "You cannot upgrade this version of macOS because a new version is installed". So when upgrading to a newer OS, the installation image in macOS Recovery mode is always lower than the OS we are using. ![]() The boot image in macOS Recovery mode keeps unchanged after the OS update. This is because when you install an operating system, your Mac computer will store an installation image( macOS base system disk image) in macOS Recovery mode which you can use to run diagnostics and re-installations. Why does the 'You cannot upgrade this version of macOS because a new version is installed' error occur? This passage will explain why this error happens and how to fix it. Just like what happened above, if Mac won't reinstall Mojave in macOS Recovery mode, you may receive an error message: "You cannot upgrade this version of macOS because a new version is installed". Some users report that their MacBooks, iMacs, and other Macs will not start after macOS update to macOS Mojave and hangs on a gray screen with an Apple Logo. ![]() Fix 'You cannot upgrade this version of macOS because a new version is installed' error ![]() ![]()
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