the process of reinstalling OS X

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1answer
13 views

Reinstall OS X due to compromised OS X partition whilst keeping Boot Camp

I have an iMac with OS X and Windows 7 dual boot (which was installed via Boot Camp). Recently, the OS X partition has been compromised, but the Windows one works great. I have created a bootable USB ...
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1answer
40 views

Can't see Apple_HFS partition after using Minitool Partition Wizard

I tried to reduce my partition size using Minitool Partition Wizard on my BOOTCAMP partition (I didn't touch Apple_HFS partition) now I can't see my Apple_HFS partition in Disk Utility. However this ...
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2answers
36 views

How to reinstall OS X on an iMac which only has Ubuntu installed on it?

I have a 2011 iMac with only Ubuntu installed. It's not a dual-booted iMac, it only has Ubuntu installed. How do I revert back to original OS X and remove Ubuntu? I've tried pressing various keys (⌘ ...
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2answers
74 views

Disk Utility (recovery mode) stuck at loading

I want to do a clean install of el capitan OS. I booted to recovery mode, chose reinstall os x and followed the steps. So far so good. When it came to choose the destination disk where I wanted to ...
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0answers
7 views

No turning off while reinstalling El Capitan

I am reinstalling the Macbook Pro 2015 because I want to sell it. During installation (which takes about 5 hours (!)) the Macbook turns itself off although it is plugged in. How can I avoid this?
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3answers
123 views

How to clean install OSX without formatting drive?

What's the best way to clean install (not upgrade) OSX (from 10.10 to 10.11) without formatting my drive? This is a MBPr with a 1TB internal, where I have 700GB of media that I would like to leave on ...
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1answer
33 views

Can the cp command be used to restore a hard drive?

My cousin contacted me for tech support because her computer was refusing to boot to the startup drive, and the issue turned out to be a corrupted drive that Disk Utility refused to fix, telling us to ...
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1answer
126 views

Can I copy a bootable El Capitan installer USB stick to a hard drive partition and install from there?

I am salvaging a mid 2013 MacBook Air 11" that was discarded with a broken screen backlight due to beverage spill and missing its SSD. (I have a very tiny budget right now so I'm only spending on more ...
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2answers
42 views

Does anybody know how long installing El Capitan onto a USB 2 pendrive from another USB 2 pendrive takes on a MacBook Air?

I'm trying to resucitate a discarded 2013 11″ MacBook Air with no internal drive and hence no OS. The Apple Store Genius bar tested it and found the only problems to be the missing drive and broken ...
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1answer
101 views

Replacing El Capitan with Mavericks

I'm trying to install Mavericks from a bootable USB. I'm using this guide; http://macpaw.com/how-to/clean-install-os-x-mavericks-on-my-mac I delete El Capitan in disk utility, but there is no ...
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1answer
52 views

10.11 Installation on old Macs

I want to clean install 10.11 on a MacBook Air 2008 and an iMac 2007.Both seem unable to boot from netinstall or an USB Stick. Which options do I have to get them quickly to 10.11?
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1answer
54 views

Can I re-install OS X on an encrypted drive without the password?

I don't know my password to my Mac OS X account and it has file encrypt enabled on drive. If I reinstall Mac OS X, will it require a password to do so?
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1answer
66 views

Offline installation of El Capitan from a Windows machine?

My macbook pro OS X is broken behind repair and I need to re-install the OS X. Unfortunately it seems the online installation is not working, because it stops downloading about half way through and ...
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0answers
31 views

Dead MacBook Pro Retina 2015

Today I had to return my MacBook Pro Retina 2015 to my work company. I followed these steps given here https://support.apple.com/en-sa/HT204904 Then, when I was at step 10 of "Erase your drive and ...
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0answers
20 views

What happens to programs like node, npm or grunt that has been installed globally after os x reinstall?

I have huge problems with the kernel_task. I have a Mid-2015 15" rMBP with discrete GPU. It really annoys me when kernel_task goes 400% 500% CPU and I could not solve this problem. I want to reinstall ...
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1answer
37 views

Clean install unused ID Apple

My dad just gave me his MacPro for me to test it, since I never used before. Since I wanted it cleaned, I follow some tutorial on the Net that said I needed to reboot it with Command+Option+R, delete ...
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2answers
87 views

How to restore OS X after installing Windows in a single boot configuration

I want to restore OS X after installing Windows in a single boot configuration. So Windows is occupying the whole disk. Now I want to erase the hard disk and restore Mac OS X Mavericks. How do I do ...
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1answer
31 views

What is best after a clean install, copying Application Folder or reinstalling all the applications?

I have done a clean install but I was wondering if it would make any difference if I just reinstall all my old applications or if I just move my backup applications folder.
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1answer
29 views

Yosemite stuck on “Setting up” for hours

I recently replaced the hard drives on my Mid 2010 Mac Pro, and thus had to reinstall OS X Yosemite. (I went with Yosemite instead of El Capitan because, as the computer is destined to become a file ...
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1answer
351 views

Backup and restore Keychain

I want to reinstall my system so I would have fresh Mac OS X. Is there a way how can I export/backup all content of my Keychain Access (all certificates and other things) and then after reinstall to ...
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0answers
23 views

MBPr doesn't boot - How can I download the El Capitan installer from a PC?

I messed up a bit, and my MBPr (mid 2015) can't boot anymore. The recovery partition is out too. I just get the recovery process from network thing, but I don't have internet at home. Hotspot doesn't ...
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2answers
237 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 ...
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1answer
35 views

Transferring Files After a Clean Install

I am planning to do a clean install of Mountain Lion (on a Macbook Pro that was updated to Yosemite) after being told that I have some corruption in my hard drive. The computer (only 3 years old) has ...
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2answers
45 views

How to wipe an old white MacBook?

Reading over Apple's documents on how to wipe a machine, it's all about internet installs. Now it's been so long since I did anything with this machine, I don't recall the process... was 10.7.5 an ...
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48 views

Having trouble making bootable El Capitan installer on early 2013 MBP that works on mid 2012 MBP

My friend bricked his mid-2012 (non-Retina) Macbook Pro (I'm not sure right now which clock speed he has). I have an early 2013 Retina Macbook Pro. Using my computer, I made a bootable external USB ...
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0answers
35 views

Does my stuck shift key affect the proper boot of my installation mediums?

I have a late-2009 unibody Macbook Pro. My left shift is stuck for ages and I have been avoiding this problem by pressing some other keys during boot to avoid safe mode and by using Karabiner to remap ...
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2answers
51 views

What URL does Recovery HD connect to in order to download OS X?

My college Wi-Fi Network doesn't support OS X reinstalls through Recovery HD. If I were to ask the people in charge of our Network to manually enable access to Apple's Servers so that I could do ...
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2answers
44 views

Do I need to buy Mac OS X again?

I am running 10.6.8 on my Mac Pro 1,1 and I want to reset it. I don't have the install disk anymore, so do I need to buy it again? Or can I copy the files from my system, and put them on a disk and ...
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2answers
206 views

I want to clean install OS X (El Capitan) on my MacBook Pro with two internal hard drives

I have a MacBook Pro Late 2008 with two hard drives in it. (I replaced the CD drive with my original drive and I added SSD 60 GB on which I installed the OS X Yosemite. This happened some years ago.) ...
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2answers
52 views

Re-installing OS X with apartment Wi-Fi

I need to re-install OS X Lion and I'm at a stage where when I turn my laptop on, it needs an internet connection to proceed. I have a good strong Wi-Fi signal, but I need to sign in. I usually do ...
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2answers
34 views

Unable to unmount disk

I have received an old MacBook from my Dad and he had wiped it clean, but I don't think he's done it correctly. I am having issues with unmounting and re-installing Lion OS X back on, which it came ...
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1answer
55 views

Reinstalling OSX is blocked with unreviewed Apple ID

I got a couple-of-years-old MacBook Pro with OSX Lion, and I attempted to format it. I erased the installed drive using Disk Utilities and then chose to reinstall OSX. Unfortunately, in order to ...
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0answers
31 views

Can't boot, can't do a recovery, can't reinstall

I try to start in single-user mode and I get about 7 lines of text and 3 lines of dots. It says: Efiboot loaded from device: (then a long alphanumeric number) Boot file path: ...
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0answers
19 views

OS X installation with Netinstall

I'm installing OS X using Netinstall which boots the image from an OS X Server on the network.The installation is successful and reaches the choose your location screen but my requirement is to have ...
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0answers
28 views

Install Mavericks on Mac Mini with a completly formatted hard disk

I have an older Mac Mini with Snow Leopard installed on it. When I was upgrading to Mavericks, the installation was stuck and the MacMini didn't start any more. I didn't know about Recovery etc. So ...
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0answers
80 views

Downloading additional components on OS X Yosemite fails at 345 chunk or so

I have a MacBook Air 2015 edition and I tried to perform a reinstall on it. But after spending a lot of time simple getting to the internet recovery option, I was finally able to get to the ...
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0answers
133 views

Can't reinstall OS X 10.9.5 Mavericks

I updated a 2009 MacBook to OS X 10.9.5. It was running a version of 10.9, but I don't recall which one. After the update, commands like ls went missing. I tried a Repair Permissions via Disk Utility, ...
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1answer
329 views

iWork and iLife are not free after reinstall

I recently bought a Macbook Pro 13" Early-2015 from a guy who used it only once and then reinstalled it for selling (already upgraded to the latest El-Capitan). After I set up my Apple ID I couldn't ...
0
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1answer
175 views

What happens after OS X Internet Recovery without erasing disk

I want to reinstall OS X Yosemite in my MacBook Pro 2015 without erasing the disk. What will I need to reinstall after the process is done? What files are not removed from my hard drive? What files ...
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0answers
116 views

What should I do if Macbook Pro can't detect bootable USB to install OS X Yosemite?

So I got a 2010 Macbook Pro yesterday from my friend (for a very low price). I wanted to have a system restore so I searched if I could do that. According to the instructions I got from a lot of ...
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8answers
32k 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 ...
0
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2answers
257 views

How can I reinstall OS X without a valid App Store connection?

I have a Mid 2009 MacBook Pro that was used by a "less than responsible" user. As such, it seems to have become infected with malware that rewrites all SSL certificates. These certificates cannot be ...
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0answers
181 views

Mac OS X El Capitan installation problem

I have an iMac early 2008. I previously had Mavericks running on it and decided to try installing El Capitan, but wanted to try it on another partition first, so I made myself a partition of 40GB. I ...
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1answer
391 views

MacBook erased by thieves but still shows on FMM

My MacBook Pro was stolen yesterday and I received an email that it was being erased. FMM now shows it was locked. It went online twice and I was able to see the approximative address. I wasn’t able ...
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1answer
110 views

New disk on MacBook, how can I install OS X

I recently change my hard disk for ssd on my Macbook 7.1. My old hard disk doesn't work, I don't have access to anything. How Can I install now OS X El Capitan? At the moment I don't have access to ...
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0answers
118 views

What files/folders should I restore after a clean install to get core Apple apps (Mail etc) back to their previous state?

I'm about to embark on a clean install of Mavericks. This is the first clean install I've done in years, and OSX has undergone quite a few evolutions in that time, so I want to check a few things ...
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1answer
320 views

Change MacBook Pro OS X Apple ID ownership [duplicate]

Over a year ago I bought a second hand MacBook Pro on ebay. Unfortunately the original owner did not reinstall the operating system and in fact it came together with Photoshop and Microsoft Office. ...
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3answers
46 views

Saving information of all current apps on Mac

I want to reset my (oldish) MacBook Pro (13-inch, Late 2011) by wiping the hard drive and re-installing OS X. Is there a way to save information on all the applications I have currently installed so ...
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1answer
114 views

MacBook Pro won't boot

I have a Macbook Pro 8.2, Intel i7, 4 GB of RAM and 500 GB HDD. While working with some apps open in background, the screen suddenly went blank and music looped. In panic I pushed the power button to ...
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150 views

Cannot reinstall yosemite - “OS X Yosemite failed to download Use the Purchases page to try again.”

i had Yosemite version installed on my laptop macbook 13" i3 500gb pro and the system is too slow. Whenever I started my session, the system blocked when trying to open any program and I could not do ...