Questions tagged [boot]

Questions about booting, the process of starting a computer and putting it into a state of readiness for operation.

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Does an apple remote wipe leave a bootable OS if the firmware password is set?

My friend has a mac which has some malware on it, we want to wipe the whole disk and create a fresh install. However the firmware password is set and she has no idea what it is. The apple store ...
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1answer
65 views

Convert Bootable DVD to DMG

i want to convert my Sierra DVD to a DMG file , so i could install it on non-mac device ( PC ). I used Disk Utilities but not worked... Is it possible to do this ? or i Have to download the source ...
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2answers
8k views

Why can't I boot to Disk Utility (iMac A1418) - It displays a lock and a password field?

Someone showed me their iMac that they recently bought second-hand. It boots normally to the login screen with the PIN (EDIT: it is a PIN and NOT a passcode; the message reads "Enter your system lock ...
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2answers
294 views

What is wrong with my mac?

Suddenly today my good old MacBook pro from 2012 won't start. I get the gray screen of death. I have tried safe boot, recovery boot and Internet recovery boot and it all results in a static gray ...
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1answer
261 views

Key to boot from USB on Ubuntu MacBook Air

Recently, I removed OS X from my MacBook Air and installed Ubuntu 14.04 on it. I have been trying to install Debian during last week, but I don't have idea what's the key to enter into 'BIOS boot ...
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1answer
137 views

Problem with bootable usb drives

So I have just created a windows 8 bootable drive using the tutorial at http://bleeptobleep.blogspot.fr/2013/02/mac-install-windows-7-or-8-on-external.html?m=1 But when I held down the option key at ...
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1answer
5k views

How can OS X be installed from ISO file on a Mac?

How can OS X be installed from an ISO file on a Mac? I have downloaded OS X Mountain Lion ISO file (4.42GB) as my MacBook fails to boot and I want to do a fresh installation.
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1answer
415 views

Can I temporarly disable automatic login while booting?

Is there a key to press in order to disable automatic login for that single boot? I do not want to disable automatic login entirely, I wonder if there is a key combination that, if you keep it ...
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2answers
2k views

precaution or steps to take before booting up 4 months unused macbook air

My mother was ill for quite some-time, and she didn't use her MacBook Air for almost 4 months now. Before booting it up again, and start making use, please let me know if there are some necessary ...
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2answers
2k views

iPhone 4 Restore loop 6.1.2

OK so the other day I tried to restore my iPhone while it was jail broken on ios 6.1.2. Well it was a terrible idea.... NEVER DO IT. any way i have worked on trying to restore it back to normal but it ...
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1answer
465 views

Can I move a hard drive from a MacBook 13 to a MacBook 15?

I'm thinking of upgrading my machine to a 15" and wondering if I can just move the hard drive over and put a new one in the 13"? The reason is my 13" Macbook has a 2TB HDD and I'd rather keep that ...
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1answer
131 views

Boot off of USB drive problem - new iMac

how can i boot off of usb disk to install snow leopard onto new iMac that has mavericks installed
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1answer
1k views

How to use UNetbootin properly? [duplicate]

Yesterday, I created a bootable USB using UNetbootin. I created it with Windows7.iso file. It was successful. The problem is when I booted my USB onto computer, it just show me this window without ...
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2answers
3k views

Mac book Pro [2011 model] - Screen bit distorted and greenish tint and does not boot completely after the apple logo and progress bar loads

My Macbook Pro hung so I forced restarted it but on restart the screen was bit distorted and had greenish tint (Picture below) also it never goes past the Apple logo and progress bar to boot ...
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1answer
898 views

Howto avoid autostart of iOS app?

I use an iOS app that autostarts whenever I reboot the phone. How can I disable that ?
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1answer
2k views

Can't boot into windows with Mojave

So I just installed the Mojave public beta version 10.14, when I turn off my machine and use the option button and select Windows it is always booting into macOS. Disk output /dev/disk0 (internal): ...