A full startup disk is something that every Mac user will experience. This problem used to be known as "Startup disk total" notification. Even so, on newer macOS versions this message has been changed to "Your disk is almost total."

But luckily, it's a problem that has many solutions. And in this article, nosotros'll get over:

  • What is startup deejay full?
  • What's causing "Your disk is almost full" warning?
  • How to fix startup disk full?
  • How to prevent "Your disk is almost full" trouble?

However, we also sympathize that some people are brusk on time and just want to fix startup disk full. So, if you're not really interested in what it is and why it happens, just skip the next two sections and head to "How to Make clean Your Startup Disk".

Or, fifty-fifty better, if you're looking how to clear infinite on Mac, we'd highly recommend a utility called CleanMyMac X. It'll help you clean up gigabytes of deejay space in just minutes (yous can download it hither).

Note: if you're running a newer version of macOS, it has a built-in option of Optimized Storage that is supposed to solve the problem of the total hard bulldoze by moving files into the cloud.

Your disk is almost full macOS Sierra

Past clicking "Manage" y'all can open the menu and see what Optimized storage offers. However, it moves junk and useless files to the cloud together with your files, and eventually, you end up paying for iCloud storage to shop junk. So we still recommend getting CleanMyMac and really dealing with extra files rather than simply moving them.

At present, with all that said, let's get into what exactly "Your deejay is almost full" means.

Agreement What "Your Deejay is Nigh Full" Means

What is a startup disk?

A startup disk, as taken from Apple tree Support article, is a volume or segmentation of a bulldoze that contains a usable operating system. Even so confused? Permit's intermission information technology down for you lot.

Your Mac hard drive consists of disks (or partitions). Each disk (or partition) has your Mac information on it, which consists of your operating organization, applications, etc. Most Mac users have simply one disk simply ability users may have 2 or more.

Permit'south look at an instance of a Mac with but one hd:

  • Your Mac'due south hard drive is 500GB.
  • It has one "disk" on it, so all 500GB of storage is on that disk.
  • The disk has an operating system (macOS Monterey), and user information (apps, etc).
  • And since yous but have i disk, this is your startup disk: all 500GB.

A Mac with two disks will have the storage divided between them. The Mac drive with the OS on it is the startup disk while the other drive is just used for storage of files. It's possible to have multiple startup disks, but virtually Macs volition only take one. And for proper disk cleanup on Mac, all drives are merely as important.

Why your disk is nearly total?

This is easy. It's a lot similar why is your fridge total? There is no more space! Your disk is almost full and this is very bad news for whatever drive. A hd should never get beyond 85% chapters (specially a startup disk) as you will feel slowness and errors the further you get above that marker.

If your startup disk is full and you lot go a bulletin of warning from your Mac, this is a serious indication that you lot need to clear upward storageimmediately.

What to do when your disk is almost full?

And then how practise you fix your almost full startup disk? The same fashion you solve the trouble of a packed fridge - you need to clear upwardly storage, of course. To make more space on your startup disk you lot will need to:

  1. Delete files from your Mac.
  2. Move files to an external hard drive or cloud storage.
  3. Or install a 2d internal hard drive on your Mac.

So, now that we know what a startup deejay is, we demand to talk nigh how to set up it. Let'southward take a closer look at your disk space to see exactly what is causing your disk to be almost full.

What'southward Causing "Your Disk Is Almost Full" Warning?

Short version: Take a look nether-the-hood of your Mac.

Before we can come across what is taking upward space on your startup disk, showtime we accept to detect it:

  1. Hover on the Dock at the bottom of your screen and open up Finder.
  2. Click on "Finder" in the menu bar at the top of your screen.
  3. Then select "Preferences…"
  4. In the window that opens, checkmark the "Hard disks" checkbox.

After selecting this box, your desktop should now show the hard disks on your Mac, in the course of icon(s), similar this:

Startup Disk Full | Displaying your hard disks

These are disks on your Mac that you can "startup", this is because they accept operating systems on them. If there is more than than one of these hard deejay icons that testify up on your desktop, it means y'all've got multiple hard disks on your Mac. If you only have i, skip the down to "What is taking up all of my startup disk space?" section.

If you accept more than than ane, go along with the next step:

Click on the Apple icon at the top left of your screen Arrangement Preferences > Startup Deejay.

Here, once more, you'll discover your hard disk drive(southward); they're probably named something like MainSSD or MainHD. Information technology volition likewise brandish "Bone" and the version number of that OS. If you lot have more than than one Bone drive, your startup deejay should be the one with the latest version of macOS running on it, but we're going to brand sure of that in the next stride.

I only have one and it looks like this:

To brand 100% sure that you know what drive is your startup disk, follow these steps:

  1. Click on the Apple tree Icon in the menu at the height-left of your screen.
  2. Select "About This Mac."
  3. Under macOS, you lot'll find a version number. Mine is 12.0.1, like then:

Run into how my version number in the "Near This Mac" window matches the number in my Startup Disk section? Yep — That'due south my startup disk. Establish yours? Good.

What is taking upward all of my startup deejay space?

At present that we've identified our startup disk, let's have a closer await at how to clear up space on Mac:

  1. Click the Apple Icon in the carte at the top-left corner of your screen.
  2. Choose "Virtually This Mac."
  3. Click Storage.
    Note: If you lot are running an older version of Os X yous may have to beginning click "More Info…" and then "Storage".

Take a wait at my hard drive disk:

I've got 250GB of storage, and virtually 168GB of it is free.

So, how big is your hd? How much gratuitous space do you have (if any — *gulp*)? And what's taking up the most space? Information technology is important to consider drive capacity and data storage needs for time to come storage plans — we're not just here to gear up the problem, for now, we're going to make sure you lot never have this trouble in the future as well.

At present that we have the knowledge, information technology'southward time to take action and set up your Mac's "Startup Disk Full" trouble.

How to articulate disk infinite on Mac

Let's get over 11 things you can practise to help fix "your disk is nigh total." These should also give y'all other ideas every bit to how else to prepare it — You know your Mac better than we do!

i. Clear system storage on Mac

easy process

System storage cleanup sounds like a serious undertaking. Merely, technically, it boils downwardly to but one thing: having the courage to scrap the sometime files.

  1. Search for large ZIP/RAR archives in Downloads.
  2. Open your Desktop (Command + F3) and delete screenshots.
  3. In Applications, sort your apps by size. Delete the largest ones.
  4. Restart your Mac to free up RAM.
  5. Get rid of system junk files with a free version of CleanMyMac X.

This app gives y'all lots of possibilities to costless upward space, especially when information technology comes to organization junk. CleanMyMac X has been notarized past Apple, which basically means information technology's safety to use. And if yous got five minutes, try this tool as it shows you where exactly your junk hides.

CleanMyMac X - Downloads in System Junk module

two. Clean upwardly cache files on your Mac

hard, time-consuming process

Cache files are files that help your Mac run programs a bit more smoothly. Remember of them like blueprints for a house: your Mac has the blueprints for how a program is supposed to load/run/expect, so information technology loads it faster; without them, it'd be like building it from scratch. However, over time, these caches can showtime to take up some serious space. Periodically, removing them tin can assistance clear storage. And don't worry, your Mac will create fresh, new ones after yous restart your Mac. To remove caches:

  1. Open a Finder window and select Become in the menu bar.
  2. Click on "Go to Binder…"
  3. Type in ~/Library/Caches
    Delete the files/folders that are taking upward the most space.
  4. Now click on "Become to Binder…"
  5. Blazon in /Library/Caches (simply lose the ~ symbol)
    And, again, delete the folders that take up the most space.

Deleting cache files is generally condom for your Mac. And one time you delete them, the applications and processes yous run on your Mac will generate fresh, new ones. Merely, when deleting, worry more than about removing them based on size rather than simply removing all of them.

As well, yous tin can check the /System/Library/Caches folder too, just information technology might exist better not to touch this folder without knowing what the items are. A utility that correctly cleans up these files (and pretty much everything else on this list) is, y'all guessed information technology, CleanMyMac X. It cleans upwardly even your organisation caches with just a few clicks.

Oh, and once yous're done with this list, restart your Mac so it can create these new cache files.

Read more: How to Clear Enshroud on a Mac?

3. Get rid of localization files

hard, time-consuming process

Localization files are also known as "linguistic communication packs." Lots of apps come up with other languages that you probably don't need. To clear up space on your Mac, delete the ones you don't need:

  1. Open up a Finder window.
  2. Become to Applications.
  3. Ctrl+click on an application.
  4. Select "Show Package Contents."

From here, go to Contents > Resources and look for files catastrophe in .lproj. These are the languages your app has only in example you desire to use information technology in another language, like Castilian (es.lproj). Drag the ones you'll never use to the Trash.

Again, a safer alternative to this would be to use CleanMyMac X. It gets rid of all of them with a click. No excavation through application folders, just a cleaner Mac.

Read more: How to Delete Language Files from macOS?

iv. Delete duplicate files

medium, tedious process

Even if you accept the about organized Mac on a planet, duplicates happen one style or another. It can be a file y'all've mistakenly downloaded twice or a mail service attachment you've opened several times. Regardless of how they appeared, those files sit on your Mac and gobble up storage.

But finding and deleting them is a time-consuming process if you do it one by i. And so hither's what you lot can exercise for a unproblematic Mac disk cleanup:

  1. Open the Finder app on your Mac
  2. Motion cursor over File and click New Smart Folder
  3. Click the "+" button in the upper right corner and choose the type of files yous want to see
  4. At present sort them past proper name to quickly spot duplicates.

Remember to pay attending to the date of creation to make certain y'all continue the true original, not the copy.

While this is the best style to remove duplicates manually, information technology takes lots of your time and dedication. Information technology'd be much easier to leave this to Gemini 2: The Duplicate Finder.

This app chop-chop scans your Mac for duplicate and similar files and allows you to delete them within minutes. Information technology keeps your originals safe and helps you easily call up files deleted past accident.

five. Remove old iOS backups

medium, tedious process

Backups tin tend to accept upwardly a lot of space. Yous can find and remove them by:

  1. Launching a Finder window.
  2. Clicking "Go" in the card bar.
  3. Selecting "Go to Binder…"
  4. Then, blazon in ~/Library/Application Support/MobileSync/Backup/

Get rid of all the old, outdated backups your Mac has been storing for a chip more than extra space.

vi. Remove big and old files

medium, tedious process

Keeping many large files on your Desktop and in Documents slows downwards the system. And if you delete only a couple of these enormously big files, yous tin get half of your storage back.

Allow's open the familiar About this Mac pane again. If you lot click Manage, you'll see this window for sorting files.

While this instrument is expert for finding large files, it misses a lot of things. See that "Other" category that takes upward 38.GB?

To deepen your search for massive files, apply this tool from CleanMyMac X. It'southward called Large & Onetime files finder.

Archives selected in LAOF module of CleanMyMacX

It's much more than helpful as information technology shows you lots of other categories of files, like Archives. The app breaks your files by Size and Last Used.

To meet this instrument in action, download the free edition of CleanMyMac X. And click the Large & One-time files at the lesser of the sidebar.

7. Remove unnecessary applications

medium, time-consuming process

This isn't often overlooked, just definitely nether-appreciated. Removing old, unused applications is a smashing way to become some actress space on your startup disk. Go through your applications folder and get rid of all the apps you rarely use. Only make sure you remove them correctly, don't just drag them to the Trash. If you do, you'll leave backside tons of leftover parts and pieces, and we're trying to become back startup deejay space — Information technology'll kinda defeat the purpose, no?

This is another place we'd propose using CleanMyMac X. To completely remove whatever application, but launch CleanMyMac X, click Uninstaller, select your application, so click Uninstall. You lot won't accept to search all over for evolution junk that's left backside when Trash'ing an application. It's incredibly easy and saves you tons of time.

eight. Motility your Photos and Docs to the cloud

hard, tedious process

When your local storage is total to the brim, your Mac will start uploading this data to iCloud. But simply if you have this setting enabled. Is your Photos app synced with iCloud already? Let's bank check.

  • Open up Applications and detect the Photos icon.
  • Launch Photos and click on Preferences in the elevation menu.

Ticking the box iCloud Photos volition connect your Photos library to iCloud. And what's more of import, if you select Optimise Storage, some role of your Photo library will exist moved to iCloud. This way you macOS saves precious space. The free iCloud plan allows you to free upwardly at least v GB worth of storage.

The similar logic applies to your Documents and other files. To set up the cloud backup with iCloud drive, get to System Preferences > Apple ID > iCloud.

9. Clean up your Downloads, Movies, and Music folders

medium, tedious process

Accept a closer look at these three folders. You'd be surprised at how many downloads can accumulate when you lot aren't paying attending. Clean out anything you don't need (or don't know) and organize the balance. Information technology'll accept a load off your mind to know that there's nothing excess there.

The Movies folder can exist a pain, not because you're searching through tons of files, but it tin can be difficult to cull what to delete. Personally, I never want to get rid of Top Gun. Information technology'south astonishing. I watched it iii times in a row terminal weekend. Just alas, sometimes you need to make sacrifices for the health of your Mac. Though, what you lot can do with movies you want to keep is to annal them. So, archive what you wish to proceed and remove the residual.

How to annal/compress a file

Archiving a file doesn't mean to store deeper into the abyss of your Mac — just to plow the file into something smaller, into a compressed file (similar .zip or .tar). Past archiving a file, you shave off some memory. Archiving is essential for things you desire to go along on your Mac, but don't often use, and helps yous clear up some space. And that's what this is all nearly correct? Nosotros're essentially doing the hokey-pokey on your Mac. To archive a file, just:

  1. Control-click the file you want to compress (recommended for movie files).
  2. Select, "Compress ."

The last place to sweep through is the Music folder. Discover and remove duplicate music files first, and then clean up all the songs you downloaded on a weird Lord's day afternoon cleaning the firm.

ten. Clean your Desktop

easy process

"Clean my desktop… but why?" Considering some people'southward desktops are difficult to await at, that's why. Organize your desktop and get rid of the stuff you just don't need on there. It looks better and helps your Mac act a bit faster (I don't know the rocket science behind this i, just information technology feels too good to be fake). Your Mac doesn't waste time loading all those icons and junk, just… Just clean it, delight.

11. Empty out the Trash (No, we're not joking…)

easy process

Seriously: It may sound incredibly bones, only it could clear a surprising corporeality of storage. I forget to do information technology all the time. The matter is, that when you delete something, your Mac doesn't remove it — it just moves it to the Trash. Plus, yous've probably deleted way more than you realize, and all that could be sitting in the Trash, wasting space. And then go rid of all that junk past elimination the Trash:

  1. Control-click your Trash in the Dock.
  2. Select "Empty Trash."
  3. And click "Empty Trash."

And, the easiest step is done.

A few more than tips to clear storage on Mac

    1. Manage your Optimized Storage

    This option comes with your operating system starting macOS Sierra. Get to the Apple menu > Nigh this Mac > Storage

    Now, click on Manage to reveal the infinite-saving options:

    two. Erase your Junk Mail

    Open your Mail app, and click Mailbox in the upper menu. Here you tin can erase spam and already deleted items.

    Full Startup Deejay Prevention

    Nosotros've cleaned upward a few things on your Mac, and hopefully, it's given you lot more ideas as to what else you can clean. Merely, allow'south take a look at how much infinite you saved from cleaning the listing above. Remember how we checked your Mac'southward free space? Open up that window again and see how much infinite you've cleared up:

    1. Click the Apple Icon in the menu at the top-left corner of your screen.
    2. Choose "About This Mac."
    3. Click Storage.
      Annotation - If yous are running an older version of macOS you may have to kickoff click "More Info…" and so "Storage".

    You've probably got a fleck more than space, and you'll want to keep it that manner. The only way to foreclose a "your disk is nigh full" is by keeping your Mac clean. We'd recommend a consummate cleaning every 2–3 weeks.

    Say adieu to the "Your startup disk is almost total" bulletin.

    We've told you how to delete storage on Mac in multiple means. Hopefully, this has helped you set up that full startup deejay trouble. Your startup disk should now be quite a bit lighter (we promise). Oh, and if y'all liked this commodity, get social with it to help others in demand. And if you really liked this article, subscribe to our electronic mail list — nosotros've got more than guides on the way.  And we've also got a utility that'll assist you out a ton in the long run: CleanMyMac Ten. Information technology helps you clean your entire Mac with just the click of a button. It'due south incredibly easy to utilise and works like a charm.