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51
votes
5answers
632k views

How can I bypass Activation Lock?

I bought a used iPhone 4. The previous owner re-set the phone, but did not remove the device from their iCloud. It is asking me for their iCloud information when I try to set-up the phone. I don't ...
71
votes
3answers
102k views

Can I install any iOS version I wish by picking and choosing which firmware to restore?

I'm trying to downgrade my iPhone from the current iOS to an older one, as per this question. But every time I try, I always receive this error: The iPhone could not be restored. This device isn't ...
113
votes
19answers
93k views

How can I figure out what's slowly eating my HD space?

Every few days I get notices on my MacBook that it's running or run out of hard drive space. Curiously, restarting the computer will enable me to recover gigabytes of space (this past time, it was ...
50
votes
4answers
83k views

How can I download an older version of OS X/macOS?

Sometimes it's hard to search for older versions of macOS & OS X on the App Store. This is an attempt to provide the canonical QA for this issue, as per the Meta QA - Where is the list of ...
12
votes
1answer
30k views

Keyboard key stuck or not being recognized; how to fix

This is an attempt to write a canonical QA for this issue, as per the Meta post: Where is the list of canonical questions stored for Ask Different? I expect it to be periodically edited with the goal ...
181
votes
6answers
407k views

How do I disable System Integrity Protection (SIP) AKA “rootless” on macOs [OS X]

Apple has introduced System Integrity Protection, also known as "rootless", with OS X 10.11, El Capitan. I understand this is a step for general protection against malware but as a developer I need ...
352
votes
38answers
207k views

What Window Management Options exist for OS X?

I'd like to do something with my windows on OS X, where something includes options like re-arranging, moving, re-sizing, remembering positions, cloning across Spaces, etc. What options exist? Rules ...
17
votes
2answers
23k views

MacBook [Pro] - how many displays, what resolution/frequency?

How do I find out the number, type, resolution & refresh rate of additional monitors I can attach to my MacBook or MacBook Pro? This is an attempt at a canonical QA, as per the Meta QA - Where is ...
52
votes
4answers
117k views

GPU problem - Boot Hangs on Grey Screen

I found this according to my problem in this thread: Boot hangs on grey screen (even when booting from USB drive with fresh OS X install) My MacBook Pro 15" Early 2011 with AMD Radeon HD 6750M ...
136
votes
10answers
213k views

Should I disconnect my MacBook Pro's power cord when the battery is fully charged?

My friend told me that I need to disconnect the power cord when the battery is fully charged. Otherwise, I will shorten the life of the battery. Other people say you should drain it once a month or ...
36
votes
5answers
73k views

How do I make a bootable USB OS X installer on a Mac?

Does anyone have a Terminal command-line recipe for making a new bootable USB flash drive for one of the new MacBook Air's? Is there a way to dd copy the USB boot device that comes in the box and ...
9
votes
2answers
12k views

MacBook Air occasionally freezes when external monitor is connected

I bought an ultra wide monitor (LG 29UM58) the other day. To hook it up to my Air, I convert a mini-DP signal to HDMI. With two different cables, I started noticing occasional latency on the signal ...
133
votes
10answers
134k views

OS X computer name not matching what shows on terminal

My computer name in System Preferences > Sharing is set to "archos", but is showing as "iphone" on Terminal. It just started doing this after I loaded Xcode for doing iPhone ...
11
votes
3answers
54k views

No bootable device USB 2.0 MacBook Pro mid 2014

I've been tearing my hair out the last couple days trying to get Windows installed. I have a MacBook Pro Retina 15 inch mid 2014. Yosemite version 10.10.1. Win 7 64 bit iso (sha1 - ...
20
votes
3answers
4k views

My Mac is getting really slow, what should I do?

I bought a Mac (13", early 2011) almost 5 years ago. When I first got it, it was running under OS X 10.7 and it was pretty fast. I've being upgrading it ever since and it's now running under Mac OS X ...
68
votes
4answers
446k views

I don't have administrator account on my mac

On my mac I have 2 accounts and the both are normal account. So in this moment I don't have a Administrator account, only one that was in the past a administrator, but now is not. How I can have ...
18
votes
7answers
44k 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 /...
252
votes
3answers
168k views

What is the “rootless” feature in El Capitan, really?

I have just learned about the "Rootless" feature in El Capitan, and I am hearing things like "There is no root user", "Nothing can modify /System" and "The world will end because we can't get root". ...
69
votes
4answers
77k views

How do I remap a key in macOS Sierra, e.g., Right Alt to Right Control?

I used to use Karabiner to remap Right Alt to Right Control (as an Emacs user I use Control MUCH more that Alt) but updating to Sierra broke this. Downgrading is not an option. How do I manually ...
10
votes
1answer
9k views

OS volume shows as type 'FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF' [duplicate]

Yesterday, I have tried to delete an Ubuntu partition. Since, my Mac (13", MBPro mid-2014) doesn't boot. Now, I boot on Mac OS copy with an USB. i follow different subject of this forum (like this : ...
44
votes
2answers
405k views

How can I get admin access to a Mac without knowing the current password?

My Father died last year and I inherited his Mac Mini. My wife has retired and we are trying to set up the mini for her use but the changes we want to make require admin access and we do not have the ...
4
votes
2answers
96k views

Fully charged MacBook Air turns off when power cord removed

I have a MacBook Air, 2009, with a recently replaced Apple battery in December 2012. Recently, when power cord comes off, the computer shuts down. Also, it usually will not restart unless power cord ...
364
votes
11answers
369k views

Shortcut for toggling between different windows of same app?

I opened two Google Chrome windows (because I am using multiple Gmails) and when I do the Cmd ⌘ Tab ⇥ shortcut it just shows me other applications that I opened but does not show me the other Chrome ...
57
votes
11answers
152k views

Is it possible to use Boot Camp with Windows 10 from an external HDD?

I need to run Visual Studio on my MacBook Pro and I need Windows to do that. The easiest and well known way to install Windows on a Mac is by running the Boot Camp app on the Mac and let it do what's ...
92
votes
7answers
50k views

Isn't Inactive memory a waste of resources?

I'm looking for explanation of memory usage on my machine especially in light of the example in this screenshot below: I understand what is Free and Active means But what are the meanings of Wired ...
39
votes
8answers
67k views

Resizing or expanding a CoreStorage volume

I bought a new SSD with 750 GB and made two partitions: 600 GB and 150 GB. The smaller one was thought to be a Bootcamp partition one day, but to date it was just another unused partition. When I ...
6
votes
3answers
7k views

launchd plist format for running a command at a specific time on a weekday

I'm trying to run a command at 10 minutes after 2am every weekday only. In my launchd .plist file, how can I specify this? I don't want it to run every 2 hours and 10 minutes, just once every ...
59
votes
7answers
49k views

How do I write to NTFS drives in OS X?

What is the best, easiest, preferably cheapest way to make OS X write to NTFS-formatted drives in Mac OS X?
29
votes
6answers
53k views

Are OS X shutdown cause and sleep cause numbers listed/explained anywhere?

The numbers in which I'm most interested -2 0 3 5 … I might add to that shortlist. What do those numbers mean; where might we find authoritative explanations? Somewhere in Apple open source, ...
14
votes
3answers
88k views

Boot camp install of Windows 7 issue, no bootable devices

So I have a 2010 15" macbook pro (MBP6,1) and I replaced the optical drive with a hard disk. I wanted to install windows 7 on the hard disk with boot camp with a USB and ISO image. After searching I ...
56
votes
10answers
25k views

Can I create a shortcut to open a specific application on OS X?

I want to create a keyboard shortcut to i.e. open Firefox while I am working in another application. I know I can use ⌘ CMD+T when I am in Firefox to open a new tab. I haven't found a way to create ...
7
votes
2answers
5k views

Mid 2012 MBP shuts down claiming no power with charge at 30% or 40% or more

I have two mid 2012 MBPs. Sometime last year they both started randomly shutting down and showing the 'please plug me in to power' image when trying to start them up. That would be fine if the batter ...
62
votes
6answers
56k views

How do I assign a keyboard shortcut to an AppleScript I wrote?

How do I assign a keyboard shortcut to an AppleScript? I found a script for automatically going back to the inbox in Office 2011.
8
votes
1answer
3k views

What is an efficient way for developers / power users to use OSX window management and Spaces on a single screen?

This may be a strange question. Background: I usually work in a multiple monitor setup, where I can plaster the screen with all my windows so nothing I might need to switch to is ever hidden from ...
73
votes
5answers
34k views

On OS X, what files are excluded by rule from a Time Machine backup?

In addition to whatever files I may choose to exclude, what files does the system exclude by rule or classification? It might make sense not to backup Trash or Caches, but I'm looking for a way to ...
36
votes
5answers
49k views

Is the Macbook 12 inch's USB-C charger interchangeable with other USB-C chargers or devices?

If there is only the Macbook 12 inch USB-C charger nearby, can it be used to charge other USB-C devices, such as any Android phones that also use USB-C? (will it be "too powerful" and damage other ...
154
votes
15answers
58k views

Best app to switch between all open windows

After 4 years of being a Mac user, there is only one thing that I still miss from the Windows world, and that is being able to switch with a single keystroke between all open windows in the computer. ...
74
votes
6answers
21k views

How to add characters to the press and hold character picker in OS X Lion?

In OS X Lion, there is a very useful feature for people like me who need to write in multiple languages, which pops up a small menu of additional characters when you hold down a letter. For instance, ...
10
votes
3answers
9k views

External monitors show blank screen until restart

MacBook Pro (15-inch, 2016) with 2 USB-C to HDMI adapters. The setup works great if I start up in that configuration. If I connect the adapters while the machine is running or simply sleeping, one ...
6
votes
1answer
22k views

What are the requirements to use iMac screen as a second monitor - Target Display Mode?

I have a Surface Pro 4 and an iMac (late 2019). I would like to connect my Surface Pro to the iMac to use the iMac screen as a second monitor. Is that possible? What are the requirements to use an ...
5
votes
2answers
2k views

Revert to El Capitan

I'm having major 'disagreements' with Sierra, compatibility issues with software etc, & have decided to revert to El Capitan. I have done this many times in the past, tested an OS then gone back ...
246
votes
8answers
715k views

How can I manually delete old backups to free space for Time Machine?

I use a Time Capsule for backup and now I want the drive to back up data from an extra Mac. But the drive is filled up with old backups from Mac 1. There simply is not enough space available for the ...
12
votes
7answers
444k views

Unable to change payment information to NONE in iOS Appstore

Ever since adding an iTunes gift card to my account, I'm getting verification requests like crazy. I can't even download free apps. It takes me to my payment info and when I try to select none, I ...
4
votes
1answer
6k views

How to determine the cause of MacBook battery not charging?

I see that the question "why is my MacBook not charging?" gets asked a lot. The problem is, there are multiple reasons. Possible points of failure are: charger, cable, magsafe connector, DC ...
309
votes
5answers
107k views

How can I disable animation when switching desktops in Lion?

I would very much like to disable the sliding animation that occurs when switching desktops via ctrl+→/← or ctrl+[number] in Lion. This was previously accomplished in previous versions ...
111
votes
3answers
252k views

Creating A Bootable USB Of Windows 8.1 On OS X?

Reasons for wanting create such a usb include: PC is unbootable and you want to prepare a bootable USB using the ISO file that you have on your external hard drive. to install Windows 8.1 on Mac ...
56
votes
5answers
238k views

MacBook Pro: How to disable discrete GPU permanently from EFI?

I'd like to disable the NVidia GTX 750M GPU on my MacBook Pro 15" (Retina, Mid 2014, Mac OS X 10.10 Yosemite). I know I can use GfxCardStatus but I read I could have a more permanent solution by ...
180
votes
26answers
60k views

Is there a quick way to lock my Mac?

On Windows you can hit the keys Windows+L to lock your computer if you step away. I don't want to have to remember if sleep currently asks for a password, if there is a time out where my screen isn't ...
42
votes
5answers
38k views

How can I run/stop/relaunch an application automatically, at boot/login/some other time?

How do you make a script or app to run or stop running automatically when the system is booted, a user logs on, at a specific time, when a disk is attached, etc.?
23
votes
6answers
24k views

Constant kernel GPU panics (GPUPanic.cpp:127) on mid-2010 MacBook Pro (6,2)

Hardware is a mid 2010 MAcBook Pro 15", i7 2,66ghz, 8 GB RAM, 512 MB Video RAM. I encounter regular kernel panics for a while now, I think since upgrading to Mavericks. Usually it used to happen ...

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