How To Clean Mac Library
Aug 24, 2015 If you've migrated your photo library to the new Photos app for Mac, deleting your old iPhoto library can help you free up gigs of space. If you've migrated your photo library to the new Photos app for Mac, deleting your old iPhoto library can help you free up gigs of space. IPhone Cleaning: How to Protect Against. You should clear your Mac computer's cache periodically to help your device's applications run more efficiently. Here's how to do it. Enter the above command to open your.
With the upgrade to Photos, many Mac users have been left with a duplicate iPhoto library on their Macs. Here’s how to delete iPhoto library and clear out some clutter.
iPhoto used to be the standard photo editor and photo management system on Macs, at least for the average computer user. Like it or not, however, that all changed when Apple first introduced the software, nearly a year ago. If your Mac came from Apple with Photos already installed, you don’t need to worry about old iPhoto libraries.
A Mac that was upgraded to a new version of OS X that added the Photos app, however, can end up with what look like duplicates of their photo libraries. The first time you start up Photos after upgrading, your Mac will copy over your photo library into the new software (if you explicitly set up more than one old iPhoto library, you’ll have to copy them over yourself). It doesn’t go back and delete the old one, though.
Here’s where things get a little bit confusing: you don’t actually have two copies of your photos. Thanks to the way OS X (the software that powers your Mac, like Windows powers a PC) works, your pictures aren’t actually stored in those libraries. Instead, they’re stored somewhere else on your hard drive, and each library has what Apple calls a “hard link” to the pictures. As a result, each library can access the photos, but store separate information about them. You can delete either library safely; only if you were to delete both libraries would you lose access to your pictures.
While having a second copy of your photo library doesn’t take up that much extra space on your computer, it can still be confusing – first of all, each library reports that it’s a certain size, which can make it difficult to figure out how much room is left on your Mac. Additionally, if you need to back things up, it can be hard to figure out where your files are.
Still with us? Let’s recap:
- if you upgrade your Mac from iPhoto to Photos, you’ll get a second photo library
- if you had multiple iPhoto libraries (you would know if you did), you’ll need to copy them into Photos manually
- the libraries each link to a single copy of your photos, rather than storing each photo twice
- it can appear that your libraries are taking up more space than they are, thanks to the way hard links work
- you can safely delete either photo library – only if you delete both of them will you lose access to your photos
How to delete iPhoto library on your Mac
Now that you understand why you might want to delete an old iPhoto library, and why you don’t necessarily have to, let’s talk about how to actually do it.
Before you do anything like this on your Mac – that is, delete something potentially important – you should back up your software with something like Time Machine.
Read: How to Backup Your Mac with Time Machine
That way, if you accidentally delete something important, or something else goes wrong, you can always roll things back to how they were when you started. This is really easy, and there’s nothing to be concerned about; it’s just good practice to back things up (and keep them backed up) before you muck about in your computer.
First, you’ll need to open a Finder window: you can do this by clicking on the Finder icon (it looks like a square face) on the dock, or by clicking on your Mac’s desktop background and hitting ⌘+N (Command + N) on your keyboard.
Next, look at the left-hand column in the new window. You’ll see a list of locations around your Mac; find the one that says Pictures and click on it. You’ll be taken to that directory, which contains libraries for Apple’s image-related apps (Photos, iPhoto, Photo Booth, etc).
In the list of files on the right, scroll down and look for your iPhoto library – it’ll be a little iPhoto icon, and the name will read, unsurprisingly, iPhoto Library. Don’t worry about accidentally deleting your Photo Booth or Photos libraries; you’ll be able to see which one is which.
To actually delete the library, you can do one of three things:
- Click on the iPhoto Library listing, and without letting go of your mouse or trackpad button, drag it until it’s over top the Trash icon on your dock. Once you’re on top of the Trash, let go.
- You can select (click on) the iPhoto Library, then right-click on your mouse or Trackpad (Apple will call this Secondary Click in your Mouse or Trackpad settings). A new menu will pop up; find the entry that says Move to Trash and click on it.
- Finally, you can also delete your iPhoto Library by clicking on it and hitting ⌘+Delete (Command + Delete) on your keyboard.
Read: How to uninstall apps on Mac OS X
Now that you’ve gotten rid of your iPhoto library, it makes sense to completely uninstall iPhoto – that way you won’t accidentally create a new iPhoto Library and have to repeat all these steps. It’s as simple as opening up your Applications folder, and deleting iPhoto (using one of the three steps we just discussed). For a more in-depth look at how to uninstall apps on your Mac, be sure to check out our guide above!
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If you’re using the new Photos app on your Mac instead of the older iPhoto app, you most likely have a duplicate photo library floating around on your hard drive. For a lot of people, that could mean gigs and gigs of wasted storage space, especially on shared Macs with multiple migrated libraries.
How To Clean Mac Computer
Here’s how to check for multiple libraries and how to delete them…
Before deleting your old library: Make a backup
While the Photos app should have imported all your photos and videos just fine, I always recommend having backups handy. Perhaps you’ll delete an old photo by accident at some point and want it back later. If you have a copy of your old iPhoto library still handy, you can pull it form there as a last resort.
I saved my old iPhoto library to my Dropbox account. You can of course use any service of your choice, or just drop it onto an external hard disk you have laying around. Regardless of how you do it, I’d highly recommend saving a copy before deleting it.
To do this, open Finder, and head to your Home folder. You can also skip all this clicking by pressing Command+Shift+G on your keyboard to access the Go to Folder menu.Type /Library in the box and hit Enter.The “” is the universal UNIX symbol for the current user’s home folder, and “Library” is the sub-folder you’re trying to open.When you hit enter, you will see the Library folder.From here you can make whatever changes you wanted to make. As you can see, the icon for the Library folder is faded, which means the folder itself is still hidden. Unhide the Library Folder PermanentlyIf you don’t want to open “Go To Folder” every time you want to access the Library, you can unhide the folder for good.
Mac photos library contains items that need to be like. Once you’ve backed up your old iPhoto library (if you chose to do so), you can proceed with deleting it:
- Open a new Finder window on your Mac.
- Click on Pictures in the left hand navigation. If it isn’t there, just search for your pictures folder using Spotlight.
- You should see two libraries, one is your old iPhoto Library and one is your new Photos library.
- Move your iPhoto Library to your trash can and empty it.
Check the storage space on your Mac, you should notice that you have more storage space available. If you are on a shared Mac and have multiple user logins, everyone using the new version of Photos on that Mac should make sure they don’t also have duplicate libraries.
I’m not sure why Apple doesn’t create a process to delete old versions of libraries after migrating to Photos, but they should. Until that happens, you’ll have to delete your old library manually.
Give this tip a try and see how much storage space you were able to clear up. As you can see in the screens above, my old iPhoto library was over 30GB, which was definitely a healthy chunk of hard drive space that I now have back.
Your Mac storage tips?
This is one of many ways to regain storage space on your Mac without having to sacrifice losing data. But we know there are lots of others. What are some of your favorite Mac storage tips for recapturing space? We’ve love to hear them in the comments!
Update
How To Clean Mac Drive
A follower on Twitter referenced to me an article written on Six Colors pointing out that the library is actually hard-linked between versions. While this may be true when you first migrate, it seems that if you make any changes to any files and the libraries become different, splicing can and will occur.
To test this theory, I deleted my iPhoto library on my other Mac to see how much storage was freed up. For those wondering, my iPhoto library was 35.99 GB and my Photos library was 41.16 GB. You can see the before and after results on my hard disk space below. I was able to free up over 20 GB of space. So I’m not sure what I think about hard linking or how well it’s actually working between Photos and iPhoto.
Clean My Mac Free
Bottom line, if you’re short on storage space and you want to free some up, there’s really not much point in having two photo libraries floating around on your Mac. Hard linking or not, deleting the old library will free up space in almost every case.