the process of reinstalling OS X

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10
votes
7answers
30k views

How can I get back a system file after deleting it from my Mac?

I've deleted a system file from my Mac and need to get it back. System files can include: hidden files in the root of / - especially unix files in /private /System files /Library files /...
16
votes
5answers
11k views

What is the best way to generate a Yosemite or Mavericks Install USB flash drive? [duplicate]

I could probably copy the contents from the package, but what is the best way to create an install Flash Drive for Mavericks? Of course ideally the drive should be bootable.
6
votes
5answers
190k views

How do I create a Mac bootable USB drive using Windows?

My MBA 2012 with OS X 10.9.4 Mavericks won't boot anymore - it simply freezes after the initial jingle. I already tried resetting NVRAM and SMC, but to no avail. I don't have any time machine backups. ...
12
votes
3answers
27k views

Reinstall Mac OS X Mountain Lion before selling a Mac

I want to sell my laptop (Macbook Pro late 2011). I have erased my disk drive but it seems that I cannot reinstall Mac OS without an Apple ID. At the origin my mac was shipped with Lion, I have ...
9
votes
2answers
690 views

Reinstalling Lion

My Mac has gotten pretty dirty from all the stuff I've installed and the files I have accumulated these past months. I have tried reinstalling by holding Command-R and following the process. However, ...
18
votes
9answers
42k views

This copy of the Install OS X El Capitan application can't be verified. It may have been corrupted or tampered with during downloading

Macbook Pro 13" 2015 with OS X Yosemite on board. I've been trying to install OS X El Capitan, but always get the following message: "This copy of the Install OS X El Capitan application can't be ...
5
votes
2answers
2k views

How do I do a clean install of Yosemite?

I'd like to start from scratch with Yosemite. I have Mavericks running on my iMac now but I'd like to just wipe the system and start with a clean Yosemite install. How do I do a clean install of ...
2
votes
2answers
135 views

How to install OS X Mavericks if disk only has Windows on it?

I have a MacBook Pro How can I install OS X Mavericks if my HDD only has Windows on it?
1
vote
2answers
6k views

Install Mavericks on second partition in Yosemite-only system?

I have a 2012 MacBook Pro (so yes it's capable of Mavericks). I have only Yosemite currently installed on the drive. I have an app I need to run that does not seem to properly support Yosemite, so I ...
6
votes
3answers
35k views

How to do fresh install of Mountain Lion?

My Mac is very slow. My Mac is running OS X Mountain Lion after an upgrade from Lion. How can I do a fresh install the OSX Mountain Lion, with a clean HDD (all of my documents deleted), so it ...
3
votes
2answers
1k views

Is it easy to mount my Time Capsule after a clean install (without any restore) so that I can copy individual files from it?

People say it is possible but I am suspicious. I want to clean install and start fresh with nothing. Then I can access my Time Capsule that has my backup and copy any files I want. How easy or ...
2
votes
3answers
4k views

The OS X upgrade couldn't be started because the disk is damaged and can't be repaired

My relative was attempting to upgrade her Macbook Pro and it failed. Everytime the laptop boots up, it brings up OS X Installer. The Installer never completes installation because it says the disk is ...
1
vote
2answers
323 views

Bought a brand new SSD Samsung 850 evo, plugged in, restart macbook, hold option, and no disk utility screen

So I bought Samsung 850 EVO, 250GB, and plugged it into my Macbook (Mid-2010, Macbook 7.1). I installed it without mounting screws, because I don't have screwdriver to unscrew the ones from the old ...
2
votes
4answers
23k views

-1006F error message when trying to recover mac

my macbook pro crashed and i sent it for repairs.. so the guy installed a new hard drive but then sent it back with a screen having a flashing folder with a question mark.. so i looked at this page ...
2
votes
1answer
1k views

Deleted all partitions from Mac mini except Boot Camp, now can't reinstall OS X

I have a Mac Mini without DVD drive (2010), and I used Boot Camp to install Windows 8. Everything worked but after I played in Windows with the partitions (I wanted to expand the partition of the Mac)...
1
vote
2answers
781 views

Can I download Mac OS X for a used MacBook Pro?

I want to by a used MacBook Pro i5 Mid 2010 edition, but there is no system DVD. The previous owner's stuff is on the hard drive, and I want to wipe it clean with a new OS. Can I boot into existing ...
0
votes
0answers
116 views

Upgrade MacBook Pro Mid 2012 stuck on grey Apple Logo

I wanted to upgrade my MacBook Pro Mid 2012 with a clean Mac OS X Snow Leopard install. I bought 2x8GB RAM and a Samsung SSD (500GB) and replaced the RAM and SSD. I put the orginal DVD in the drive ...
0
votes
3answers
5k views

What is the partition size needed for The Mavericks install disk?

I will setup a USB key to install Mavericks. I would like to know the needed size of the partition to install Mavericks.