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I have a brand new macbook. I don't really know a ton about macs...I'm newly switched from a life of windows pc's. I keep reading about how you can unintall and then reinstall your OS. I can't get my head around how you would do this, bc w/windows you would have no way to get on the internet to access the program without an OS on the computer. I can imagine getting a drive to put it on, from which you could reinstall, but that seems to defeat the point if you think your version could be corrupt and want to ditch it and get a clean copy.

My computer is the Macbook(not an air or pro), so it has no drives and only one port. I do not have any external drives.

When I bought this machine I asked the genius bar to transfer my files, music and photos only. They ended up transferring my entire drive, which included windows folders.I've deleted most of this, but am not sure if I've removed everything and do not know if this could be the source of the problem. Could these files have corrupted anything?

Any thoughts greatly appreciated. Sorry if I appear ignorant! It's only bc I am when it comes to this :~)

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  • On a brand new MacBook, usually there is no need to reinstall the operating system, that is only done if system is stuck and will not boot. – Ruskes Aug 12 '15 at 17:52
  • We do not know what you deleted, but most probaly you did not damage the OSX. So tell us which programs a freezing so we can clear that. – Ruskes Aug 12 '15 at 18:01
  • hi. thanks. SO, mail and safari are what are freezing. Not sure what to do. I assumed that these where part of the OS – gracey209 Aug 12 '15 at 18:05
  • what I mean by freezing @Buscar웃, I am getting either a blue or multi-colored spinning wheel on Safari. – gracey209 Aug 12 '15 at 18:21
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    I do not know what you deleted. There is always the "Safe mode" to test. Hold Shit key during boot. Now try Safari. Reinstalling OS X will restore Safari and Mail, but not sure it will fix your problems (of possibly 3d party app interfering). So go ahead and reinstall OS X and let us know if that solved it. – Ruskes Aug 12 '15 at 18:55
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First off, congratulations on upgrading to a Mac, I'm a Windows "switcher", too, and will never go back. Secondly, as far as reinstalling a fresh copy of OS X (pronounced oh-es-ten NOT oh-es-ex) you will want to turn your MacBook off, then turn it back on, but while holding the Option key. Release it when you see two icons of hard drives, whatever you named your startup disk ("Macintosh HD" by default) and one labeled Recovery. Select Recovery by highlighting it with the arrow keys, and then hitting the enter key. Once there, you should see the option to "Reinstall OS X" select it and just follow the on-screen instructions from there. Make sure to select your start up disk, again named "Macintosh HD" by default, where it asks which drive to reinstall it on.

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  • thank you. If I do this, will my files be secure. I didn't get a backup drive bc I thought that i would back up to iCloud, which i learned is not possible, – gracey209 Aug 12 '15 at 18:06
  • Everything should stay the same, you're just reinstalling the OS. All your files will still be there. – RedEagle2000 Aug 12 '15 at 18:07
  • Thanks. So, another user just indicated this may not be the right thing for a fix, as it (reinstalling OS X is only necessary if machine won't boot. I'm not having that problem. So now, I'm waiting and researching b/f doing that. – gracey209 Aug 12 '15 at 18:11
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    Definitely not! Beta software would only raise more issues. – RedEagle2000 Aug 12 '15 at 20:29
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    Not having a backup is asking for trouble. I wouldn't reinstall without a Time Machine backup, more so if you are a novice user. – Jaime Santa Cruz Aug 12 '15 at 20:32

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