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Apple Computing Products:
macOS - Operating System
Migration assistant, and doing a 'clean' install
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<blockquote data-quote="Lifeisabeach" data-source="post: 1457578" data-attributes="member: 38864"><p>Yes, definitely run the extended scan. That will be pretty much definitive, though feel free to look over <a href="http://www.mac-forums.com/forums/os-x-operating-system/267379-too-much-space-used-hard-drive.html#post1372971" target="_blank">this post of mine</a> with tips on testing drive health. When all is said and done, if all it finds is the one bad block, then I'd say the drive is fine.</p><p></p><p>I do need to comment on CleanMyMac. Don't use it. I've tested it in the past and quite frankly I think it's little more than FUDware. It does nothing that can be done for less or for free with better software. It's module to "clean system junk" doesn't actually appear to do anything. I ran it on a brand new folder to which I had copied a handful of PNG images. CMM claimed it saved me some amount of disk space, but nothing actually changed. Not even the invisible files, which I had made visible.</p><p></p><p>If you feel the need to use a cleaning tool, Onyx is very competent. Literally the only other one I would recommend is <a href="http://www.bresink.com/osx/TinkerToolSys2.html" target="_blank">TinkerTool System</a>. It's not free, but is cheap and has a handful of tricks up its sleeve that Onyx can't do. It also does a much better job of explaining what each module does. I don't care much for the UI though. In any event, it's not necessary to run any of these tools on a regular basis. Certainly as part of troubleshooting, but generally speaking OS X does a fine job on its own.</p></blockquote><p></p>
[QUOTE="Lifeisabeach, post: 1457578, member: 38864"] Yes, definitely run the extended scan. That will be pretty much definitive, though feel free to look over [URL="http://www.mac-forums.com/forums/os-x-operating-system/267379-too-much-space-used-hard-drive.html#post1372971"]this post of mine[/URL] with tips on testing drive health. When all is said and done, if all it finds is the one bad block, then I'd say the drive is fine. I do need to comment on CleanMyMac. Don't use it. I've tested it in the past and quite frankly I think it's little more than FUDware. It does nothing that can be done for less or for free with better software. It's module to "clean system junk" doesn't actually appear to do anything. I ran it on a brand new folder to which I had copied a handful of PNG images. CMM claimed it saved me some amount of disk space, but nothing actually changed. Not even the invisible files, which I had made visible. If you feel the need to use a cleaning tool, Onyx is very competent. Literally the only other one I would recommend is [URL="http://www.bresink.com/osx/TinkerToolSys2.html"]TinkerTool System[/URL]. It's not free, but is cheap and has a handful of tricks up its sleeve that Onyx can't do. It also does a much better job of explaining what each module does. I don't care much for the UI though. In any event, it's not necessary to run any of these tools on a regular basis. Certainly as part of troubleshooting, but generally speaking OS X does a fine job on its own. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Migration assistant, and doing a 'clean' install
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