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104
votes
6answers
349k views

Is it safe to delete ~/Library/Caches?

Is it safe to delete the file Caches, in the Library of the Mac OS X Hard Drive? It's a pretty big file, 3.56 GB, Caches reminds me of logs i don't need or browser cookies. Is it safe to delete the ...
24
votes
3answers
20k views

Can I use Back To My Mac's mDNS address and for ssh and other routing of traffic?

On Lion and iCloud, the old MobileMe and Snow Leopard mDNS naming has changed and no longer works. I'm wondering how to use command line tools to find out the DNS name that Apple has assigned to my ...
59
votes
18answers
40k 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 ...
120
votes
10answers
75k views

Why is it not possible to use the “cut” command to manipulate a file in the Finder?

On OS X 10.6 (Snow Leopard), I don't seem to be able to us the "Cut" command on a file in the Finder, like you can do in Windows Explorer on Microsoft Windows. (In Windows, once you select a file and "...
42
votes
5answers
67k views

How to add hibernate mode to MacBook Pro

I have recently switched to Mac from Windows hence I do not have much information. I want my Mac to go to safe sleep state on closing the lid. I also need an extra option available somewhere which ...
59
votes
2answers
79k 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?
27
votes
4answers
48k views

Difference between autopoweroff and standby in pmset

I just got a new Retina MacBook Pro 15". After getting some downloads interrupted due to the computer going to sleep (even on AC power), I started looking at the man page for the pmset command. I did ...
62
votes
3answers
37k views

What's the difference between Real, Virtual, Shared, and Private Memory?

The different columns in Activity Monitor are a little confusing
51
votes
13answers
57k views

Why would I disable swap file in Mac OS X?

I came across a thread about installing an SSD drive in MacBook Pro. Someone in the comments also recommended to disable the swap file but didn't say why: sudo launchctl unload -w /System/Library/...
38
votes
5answers
16k views

Is there a way to hide certain apps from the cmd+tab menu?

Is there a way to hide certain apps from cmd+tab? The problem I'm facing is that I have some apps (like iTunes and of course Finder) always open. But when I'm working and switching between apps that ...
19
votes
3answers
54k views

How to turn Mac OS X Lion into a web server?

After using MAMP for ages, I found out I could actually use Snow Leopard's built-in Apache server. Now that I've upgraded to Lion, I have no idea how to do this anymore. Do you know how to turn my ...
28
votes
8answers
33k views

How do I disable the volume control overlay?

When changing the volume on a Mac, you get a big ugly gray bezel showing the change in volume. This is super annoying when (say) watching a movie. Is there any way to disable this?
44
votes
4answers
37k views

Copy and Cut sometimes don't work [closed]

My system is kept fully up to date and I still see this problem intermittently, although not as often as I used to; I would say that this has not been fully fixed. If there are any workarounds other ...
9
votes
2answers
11k views

Triple boot macOS High Sierra, Ubuntu, and Windows without rEFInd

I currently have three OSes installed on my 2017 MacBook Air: macOS, Ubuntu, and Windows 10. I couldn't boot into Ubuntu without rEFInd, but I strongly prefer the default boot manager, because I want ...
36
votes
3answers
17k views

How to securely erase an SSD drive?

I'm pretty new to SSD technology, so I don't know how it compares to hard drives when it comes to securely erasing the drive. Is it enough to run Disk Utility and erase the drive with the option "...
28
votes
7answers
25k views

How do I make windows save their position on screen after re-attaching a display?

When I attach a second monitor to my MacBook, I drag many windows onto it. When I detach the monitor, all the windows move back onto my MacBook's display. How can I make it so that when I re-attach ...
21
votes
2answers
24k 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 ...
15
votes
2answers
7k views

Where are keyboard shortcuts stored (for backup and sync purposes)?

Where can I access OS X keyboard shortcuts, say for Dropbox sync?
20
votes
3answers
27k views

How can I dim the screen from Terminal?

Is it possible to dim the screen from Terminal, in a Mac with OS X Lion? Is there any command to do control brightness and volume?
19
votes
7answers
47k 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 ...
28
votes
4answers
311k views

How can I recover my MS Office 2011 product key?

I want to use Migration Assistant to transfer my data from a Macbook Pro to a Macbook Air. I'm told that I need my product key for MS Office 2011. Is there a way to find my product key on my mac?
23
votes
3answers
22k views

Do I need to repurchase apps if I moved countries?

I recently moved countries and had to update my billing address in iTunes (change of full address and credit card info). This went fine, no problems whatsoever. It also meant that I had to change App ...
22
votes
6answers
164k views

Control and see iPhone from Mac with broken iPhone screen

My iPhone screen broke, I can't see anything anymore. But I know it's still working because plugging to my mac syncs it with iTunes. Is there a tool I can use to see my screen on the mac, control it, ...
23
votes
1answer
4k views

How can I switch dialog buttons using the keyboard?

Whenever I'm trying to close a file that has been changed, I get the save file dialog I remember that the Don't Save button used to have focus, so I could press it using Spacebar, while pressing ...
15
votes
3answers
11k views

How to hide or remove useless network names from the wifi menubar icon

I have obnoxious neighbors that think its funny to use offensive words for their SSIDs. I would like to remove those SSIDs from, at a minimum, the wifi menubar icon. If its easier, hiding/removing ...
9
votes
3answers
18k views

Turn off automatic preview in apple mail

Is it possible to turn off automatic preview of attachments when composing an e-mail? NOTE: Yes I know that I can manually ctr+select the attachment and disable preview, but I want this done ...
5
votes
4answers
5k views

How do I install Windows 10 on MacBookPro5,1, with no optical drive (SSD+HDD)

I have a huge problem. I am not able to install Windows 10 on my late 2008 MacBook Pro with bootcamp. I have replaced the optical drive as it was not working with a 1 TB HDD and i have a SSD drive ...
20
votes
7answers
29k views

iPad displays “Not Charging” when plugged into USB ports. What can I do?

When I plug my iPad into my computer's USB ports, the iPad battery area displays "Not Charging". I understand the iPad requires more wattage to charge compared to an iPhone or iPod, as evidenced by ...
6
votes
1answer
13k views

The startup disk cannot be partitioned or restored to a single partition. Windows 10 and Mojave

The startup disk cannot be partitioned or restored to a single partition. The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp ...
3
votes
3answers
18k views

How to convert a drive from the GPT format to the hybrid GPT/MBR format when using High Sierra (macOS 10.13.2)

Previous versons of OS X and macOS automatically converted pure GPT drives to hybrid GPT/MBR format when the 2nd, 3rd, and/or 4th GPT partitions were formatted "MS DOS (FAT)" by the Disk Utility ...
11
votes
6answers
23k views

How can I see the phone number dialed after I initiate a call?

In the Phone app (iPhone 5, iOS 6.1.2), I click on a contact's number, the call is initiated and starts ringing. For a brief moment at this point, the label of the number (home / work / etc…) is ...
10
votes
6answers
114k views

Is it possible to wipe an entire iCloud Photo Library?

I've been using the beta iCloud Photo Library for a week and a bunch of photos got duplicated and I'd like to wipe all the photos out and start over. I have backups of all the photos and have turned ...
4
votes
2answers
2k views

What are the purposes and safety to enable the hidden debug menu in Disk Utility?

I'm primarily interested to know whether installation of Lion included the Recovery System. I understand you can enable extra formats and debugging in Disk Utility, using the following commands: ...
3
votes
1answer
3k views

Install macOS Sierra on VirtualBox?

I’m trying to install macOS Sierra on VirtualBox, but can’t seem to make it work. For reference, here are the steps I took. Downloaded the Install macOS Sierra app from the App Store. Used the ...
14
votes
5answers
6k views

Will an iOS reinstall make a jailbroken iOS device “unjailbroken” and “supported by Apple” again?

Will an iOS reinstall Work on any jailbroken-iPhone and Make a jailbroken-iPhone "unjailbroken"? Make a jailbroken-iPhone "supported by Apple"? Similarly, does such an iOS reinstall reset the iPhone ...
11
votes
1answer
5k 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 ...
8
votes
2answers
46k views

Using memory with a higher MHz rating? [duplicate]

Can MacBook Pro's successfully support and fully exploit RAM of a higher MHz rating than that which they ship with? For example, take my 15" MacBook Pro (Late 2011) that ships with 4GB of 1333MHz ...
8
votes
4answers
16k views

How to recreate Lion Recovery HD partition?

I have a Macbook Air Mid 2011 which came pre-installed with Lion. After a trackpad hardware problem I wanted to be sure that none of my programs was responsible for the problem. I booted into the ...
7
votes
2answers
423 views

How do I get iWork / iMovie / Garage Band free of charge?

Everything that I have read says that iWorks/ iMovie etc should be free for Mac users after 1 September 2013. I already bought Pages but want Numbers and iMovie. My MacBook Pro with retina is early ...
6
votes
5answers
6k views

Shutdown Cause -128

My Macbook pro (early 2011, upgraded to 10.11) started behaving strangely lately. It started randomly crashing multiple times of the day, and the only information I've been able to find is the ...
2
votes
1answer
7k views

Cleaning my Macbook Pro Retina leaves greasy 'streaks' across the screen

I try to clean my mid-2015 Macbook Pro with Retina display by wiping the screen with a damp cloth and then immediately drying. However, there seems to be left some residue/streak marks, which look ...
23
votes
4answers
278k views

Is it possible to use an iPhone without a SIM card as an iPod touch?

Is it possible to use an iPhone without a SIM card as an iPod touch? I have an old iPhone 3G that no longer has a SIM card and I want to use it as an iPod touch. How can I achieve this?
8
votes
0answers
19k views

Why am I asked for a credit card number to download a free app? [duplicate]

I want to download free app in my iPod touch device and i have the following doubts. Kindly resolve me doubts. when i try to download it asks my credit card security number. since i am trying to ...
7
votes
3answers
10k views

Thunderbolt -> Triple Monitor Mac Mini?

It seems the new Mac Mini uses both HDMI and Thunderbolt, but bandwidth limitations of Thunderbolt may prevent using 3 daisy-chained Thunderbolt high resolution monitors such as the newly released ...
6
votes
2answers
10k views

How to accept USB as audio input for New Macbook Pro Retina?

I would be very grateful if you could help me clarify - I used to use a software program for recording vinyl mixes on my old Macbook called - Audacity. Recently I've replaced this old Mac with a new ...
5
votes
3answers
4k views

Recover deleted Encrypted OS X Extended volume

I accidentally formatted an external 1TB HD to FAT file system using Disk Utility in Mac OS. The disk used to be HFS+ encrypted. Encryption was done when I created the OS X Extended partition, not ...
4
votes
2answers
5k views

Software was blocked from opening because it is not from an identified developer

I went to run LibreOffice on my OS X 10.9 and it would not let me install it. It said it was from an unidentified developer. I'm aware of the security features of the Mac and went to System ...
3
votes
2answers
186 views

How to remove Apple System Apps

How can I delete Apple OS X application such as Photos, iPhoto, and others that I never use?
3
votes
1answer
1k views

iMac disk partion FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF and fusion drive unlinked

I was trying to uninstall linux mint and was trying to restore the partitions back to one. Somehow I ended with the one of the partition labeled FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF. This are the ...
2
votes
1answer
2k views

27 imac Late 2012 HDD Failure

The HDD on my 27 imac Late 2012 has died. Is it replaceable? At present, I switch on (soundless) and get the white screen which loads up one third and then freezes. I tried Disk utilities which told ...

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