Questions tagged [macos]

macOS is the current marketing name for Apple's Macintosh Operating System. This OS was previously known as OS X, and Mac OS X before that (which itself succeeded the 'classic' Mac OS).

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200
votes
5answers
88k views

Applications Don't Show Up in Spotlight

Spotlight has stopped showing any results for my Applications. I've tried reindexing and removing the index so it rebuilds it. No change. I've tried adding Applications to the Privacy tab and removing ...
194
votes
1answer
62k views

How to prevent Mac from changing the order of Desktops/Spaces

You may have encountered a situation in which Mac changes the order of desktops based on some events like alerts on a program or a web page in browser. How could I disable this logical change? Note: ...
73
votes
5answers
34k views

Make the Menu Bar never show while in Full Screen

Pretty much every application I use in full-screen (including Firefox, MacVim and the Terminal) have tabs on the top of the screen. The problem is, when I move my mouse to reach the tabs I'll often ...
45
votes
6answers
50k views

How can I tell if my Mac is keeping the clock updated properly?

I would like to know what the default settings for OS X are in terms of keeping the clock adjusted when I enable automatic time sync in the Date & Time preference. I do know that the venerable ...
50
votes
11answers
4k views

Is it generally advisable to get anti-virus software for Mac OS X?

Is it worth to buy an anti-virus software for Mac OS X? I heard both opinions like "it's not possible to get a virus on Mac OS X" and "Mac OS X is also vulnerable against virus... " Which is true? ...
19
votes
4answers
11k views

Which command controls the open file limits?

Which command / configuration file controls the open file limits on OS X? Is there a different command for OS X 10.5 / 10.6 / 10.7? The options I explore below are ulimit, sysctl, and launchctl "...
37
votes
4answers
7k views

Why is /tmp a symlink to /private/tmp?

Why is /tmp a symlink to /private/tmp on Mac OS X? In other words, why isn't /tmp just a regular directory, like on Linux or BSD? I understand how it works and I don't mind it, I'm just interested in ...
14
votes
6answers
11k views

How to show hidden files on mac without Terminal

I need an easy way to switch files visibility on Mac. I know about Terminal commands how to show hidden files and hide files. However, I need a tool to make this task faster and easier. I was trying ...
20
votes
2answers
4k views

Data Not Backed Up, Partition Type: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF

I was trying to install Linux on my MacBook for class when I bricked my computer, which now in an unbootable state. I made my partition too small, so I was going to delete and create a larger one. ...
27
votes
6answers
269k views

Can I downgrade to Mavericks after installing Yosemite (beta/developer preview)?

I have installed the developer preview for Yosemite. Huge mistake. Everything in my workspace is broken. I don't have any sort of backup image. I was wondering if I could re-download Mavericks and ...
38
votes
4answers
7k views

How can I prevent iPhoto from opening everytime I plug my iPad/iPhone?

How can I prevent iPhoto/Photos/Image Capture from launching everytime I plug in my iPad/iPhone?
15
votes
1answer
9k views

Disable the disk check when reconnecting an improperly disconnected disk to OS X

If you disconnect a removable drive without ejecting it first, the next time you connect it, Windows or Mac run an fsck check on the disk to ensure data integrity. Windows will ask if you want to ...
12
votes
4answers
25k views

Completely synchronise multiple Macs

I actually have a Macbook Pro with Snow Leopard (I plan on upgrading to Lion). I may have to buy an Mac mini in order to have a full dual screen (external identical screens) layout (see my previous ...
8
votes
1answer
4k views

macOS partition startup Volume type FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF

I have encountered a nearly identical issue to the one in this question (and this too: Data Not Backed Up, Partition Type: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF), but my hard drive's main partition is ...
4
votes
1answer
1k views

Find out if any files were exported from my MacBook

I left my laptop around with co-workers for around 30-40 minutes. Can I find out if any files were exported/opened from my laptop during that time? 11/5/17 3:12:09.000 PM syslogd[47]: ASL Sender ...
404
votes
133answers
237k views

Got any tips or tricks for Terminal in Mac OS X?

One tip or trick per answer. My favorite is open . Opens the folder you're currently browsing in Finder. You can also pass URLs, images, documents or else to open. If you specify a program name ...
178
votes
107answers
54k views

What tiny thing in Lion makes you smile or has caught you off guard?

I would like to call for a place to list some little things that surprise you about Lion. There are so many articles and lists of all the new features with information overload, I would rather focus ...
266
votes
3answers
175k views

Hotkey to show hidden files and folders in File Open dialog?

This question is very similar to Is it possible to always show hidden/dotfiles in Open/Save dialogs?. How to show hidden files and folders in finder? is also related. However, I don't want to always ...
123
votes
6answers
120k views

How to turn off all animations on OS X

Is it possible to turn off all animations on OS X?
134
votes
10answers
283k views

How can I mount an ext4 file system on OS X?

Is there a safe, stable application for reading from and writing to ext4 file systems on Mac OS X? If not, what's the best way to access the contents of an ext4 file system on Mac OS&...
41
votes
6answers
28k views

How can I modify the list of Applications under 'Open With…'?

I recently went to open an audio file, and wanted to open it in an editor instead of a player. I right-clicked it, hovered over 'Open With...' and was met with a very unsightly list. I have seen a ...
52
votes
6answers
21k views

Can I make a DIY Fusion Drive?

I have a Mac Mini with two drives: a 256GB SSD and a 500GB HDD. From what I've read, the new Fusion Drive does all of it's magic in software, using the Core Storage APIs. Can I get my setup to ...
87
votes
6answers
34k views

How can I activate buttons with just the keyboard?

Many user interface (UI) elements or dialog boxes have buttons. I would like to be able to activate a button with just the keyboard, without the mouse. How can I do this?
22
votes
7answers
12k views

How can I expand the number of special characters I can type using my keyboard?

I am aware that when I press ⌥ or ⇧⌥ on my Mac, I can type a variety of special characters. I also know that I can insert special characters using the character palette. Is there a way to expand the ...
31
votes
4answers
11k views

Optimize macbook pro for internal SSD+HDD drives

I upgraded my MacBook Pro by replacing the SuperDrive with an SSD. I'm now using the SSD as the boot volume and have all my applications. My home folder is on the HDD. My question is how to best ...
23
votes
2answers
27k views

How to thin your local Time Machine Snapshots on macOS High Sierra

I have noticed that my extra space just suddenly disappears since upgrading to macOS High Sierra. For example, I have 170 GBs free in the morning and then by the afternoon I'm down to 56 GBs. Then ...
43
votes
4answers
16k views

Prevent Photos app on OSX from launching when plugging in device

The Photos app opens whenever I plug in my phone. How can this be prevented? I have seen many solutions for the old iPhoto app that involve changing the "Connecting camera opens" option, but the ...
21
votes
7answers
49k views

Gigabytes of disk space shown as hidden space in DaisyDisk

My disk space usage doesn't add up. I should have used only about 80 gigabytes, but according to DaisyDisk about 25 gigabytes is taken up by hidden space. The mystery disk space seems to be classified ...
56
votes
7answers
67k views

What is wired memory?

I'm trying to figure out what is using all of the memory in my Macbook Pro running OS X Lion. I have 8 GB of memory total. When I quit all active programs except Finder and Activity Monitor, then run ...
55
votes
9answers
119k views

Can I share my iMac's internet to iPhone or iPad over USB?

I have an iMac, connected to the Internet via Ethernet, and an iPhone 4. I would like to share the iMac's Internet connection to my iPhone via the USB Cable (because my wife dreams of a wifi-less ...
4
votes
2answers
9k views

macOS partition disappered after installing windows 10 using bootcamp

I use a macbook pro 2015 with macOS High Sierra. I installed windows 10 using bootcamp, which resized the macOS partition and created a 80GB windows partition. The machine boots into windows just fine....
7
votes
6answers
7k views

Downloading all photos from iCloud Photo Library without Photos app

I have an iCloud account with about 800 photos stored in iCloud Photo Library. I’m trying to move them to a Mac and delete them from iCloud in order to clear up space. I tried to connect my Mac to ...
5
votes
4answers
419 views

Weird free spaces estimation

On my MacBook Pro Retina late 2014 running OS X Yosemite, there's something weird going on. If i look at the storage tab in the "About my Mac" menu, I use only 67 gigabytes of storage but it says 151 ...
61
votes
16answers
71k views

Computer name keeps changing OSX 10.10 (14A389)

Since I upgraded to Yosemite 10.10 (14A389) my computer name keeps changing adding a (2) and (3) and so forth. Any ideas how to fix this?
68
votes
6answers
101k views

How do I get detailed SMART disk information on OS X (Mavericks or later)

I'm trying to get a detailed SMART status report on the drives in my Mac. I'm not talking about "Verified," I'm talking about the detailed report that's about 100 lines long listing all the vital ...
62
votes
19answers
42k views

Lock Screen Command One-Liner

I'm trying to find out whether there is any kind of equivalent command line one-liner which replicates the exact identical functionality of the 'Lock Screen' menu option available via the Keychain app ...
59
votes
18answers
50k views

How do you maximize windows?

Unlike Windows, you cannot maximize a window in Mac with a click of the button. The little green (+) button next to the red and yellow buttons at the left of the windows does some strange stuff ...
60
votes
2answers
82k views

What is com.apple.bird? Why does it grow so big?

When trying to clean up their hard disk, some users discover ~/Library/Caches/com.apple.bird is pretty big, sometimes in the order of many gigabytes. What is it?
35
votes
10answers
162k views

Unable to Resize Partitions

I have recently created a partition on my macbook air running OS X 10.9, and this was to run install another OS instance (Yes, OS X 10.10 Yosemite, but that is an aside to the query I have) on it. I ...
61
votes
5answers
171k views

“System” storage on macOS Sierra is 470GB!

My Mid 2012 MacBook Pro 13" says I suddenly ran out of Storage space. My Mac barely has any data and my upgrade to Sierra was a clean install. Nothing was ported from previous backups. If you see ...
42
votes
3answers
28k views

How to show hidden files and folders in finder?

I have a folder that starts with a dot . but unable to display them in Finder. How can I say that for folder X Finder should also display hidden files/folders?
22
votes
1answer
6k views

Is there console mode in Mac OS X?

Is there something like Linux console in Mac OS X? Like "terminal", but without running graphics environment.
35
votes
3answers
16k views

Yosemite auto creates multiple desktops (spaces) on main monitor

Since upgrading to Yosemite I've been having issue with OS X creating additional desktops on my main monitor for no apparent reason. I usually have 3 different desktops setup on my main monitor and ...
28
votes
8answers
177k views

Download El Capitan Installer now that Sierra is out [duplicate]

I have recently been having issues with my mac and want to do a clean install. I still have Yosemite and thought it’s a good time to upgrade the OS. However, I am wary of jumping directly to Sierra ...
32
votes
1answer
15k views

How to record iPhone/iPad screen on macOS?

OS X Yosemite brought support for recording iPhone/iPad screen natively without having to using AirPlay applications like AirServer or Reflector. How do I record the iPhone screen on macOS ?
18
votes
2answers
42k views

Reclaim deleted partition now Free Space after Yosemite removal

I've installed Yosemite in a second partition. Once I decided to remove Yosemite and go back to Mavericks, I am not able to claim the free space partition in the Disk Utility. How can I reclaim this ...
26
votes
3answers
8k views

macOS Sierra doesn't appear in my Purchased list within the Mac App Store

Typically, when users download and/or upgrade to a new version or macOS (previously Mac OS X), via the Mac App Store, that version of the installer appears in the Purchased tab of the App Store app. ...
22
votes
4answers
177k views

Roll back from OS X Mavericks ( or any newer OS) to Mountain Lion

I installed the developer preview of OS X Mavericks, & too many things broke. I can't stay on it & need to roll back to Mountain Lion. Any ways of doing that? Please help! I originally ...
13
votes
1answer
6k views

Is there a script I can use to download the Mojave installer without being signed in to the App Store?

Is there a way to script and download the Mojave installer without signing in to the App Store? Something other than opening or clicking a url that points to the installer on the Mac App Store would ...
10
votes
4answers
7k views

Can I still use the older Airport Utility 5.5.3 if I install the 6.0 version of Airport Utility?

I have a simple network setup, and have read some initial reviews that say the new Airport Utility 6 for Mac OS X lacks some of the advanced settings that the older utility provides. I depend on those ...