![]() ![]() You can do a good amount of disk cleanup on your own, and there are some excellent programs (both free and commercial) which can help you with those tasks. (You are making backups to an external device, right?)įinally, when you begin this process, you might want to do as much disk cleanup/maintenance as possible. And the easiest way to do that is to use SuperDuper! or Carbon Copy Cloner to make a bootable backup. But upgrading might not be as "safe" or "OK" as doing a clean, fresh installation of the new OS, and then migrating/copying needed files, folders, settings etc. ![]() Maybe skip 2 of them and upgrade to Yosemite. ![]() I would advise not skipping "too many" of the various versions. Third, you need to be concerned about any third party software you are using, and most likely, will need either to upgrade some/most/all of them to be compatible with the OS you want to move to, or possibly some of them might not work at all.įourth, for High Sierra, Apple introduced the APFS file system, so that could be a challenge. For reference, these are all the current Mac models that can run both Sierra and High Sierra: MacBook (Late 2009 or later) MacBook Air (2010 or later) MacBook Pro (2010 or later). ![]() Secondly, there are 6 more recent versions you could install: First off, you are running OS 10.7.5, which is Lion. ![]()
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