Summary :
Free Up Space on MacBook Air or MacBook Pro ( 12 Easy Ways) 1. Delete Large Files on your Mac. Instead of deleting a hundred small files and images, first of all, let us go for the big fish. Click on the Apple logo from the upper left and select About This Mac. Now, click on Storage and then click on Manage. Click Documents. How to check the free space on your startup disk. Even if your Mac hasn’t warned you that the startup disk is almost full, you should regularly check how much free space you’ve got left so you can fix any problems as they develop. Here’s the easiest way to check the free space on your Mac: Click the Apple logo in the top-left corner of.
From this MiniTool article, you can know what the startup disk on your Mac is, what is taking up space on the Mac startup disk, the influence of startup disk full, and how to clear the startup disk space when the startup disk is full or your disk is almost full on your Mac.
Quick Navigation :
What Is Startup Disk on Mac?
Like a Windows startup disk, the startup disk on your Mac is the disk that saved the operating system on your Mac. It is an important disk on your computer. If the operating system on the disk is corrupted or even the startup disk is damaged, your Mac computer will not boot normally.
What Is Taking Up Space on Your Mac Startup Disk?
As you know, a Mac computer’s disk is usually not as large as a Windows computer’s disk. As of 2020, Apple has improved the disk capacity and the maximum disk size can reach up to 8TB. But they are the Pro series, which are not widely used.
Most of the time, you should not worry about the disk space issue because macOS always do work online. This will not take up much disk space. However, what’s going on if you see a pop-up alert saying Your startup disk is almost full?
At this time, you should know what is taking up space on the startup disk of your Mac and then take some measures to clear the startup disk.
The hidden website cache takes much space on the startup disk. For example, statistics show that Google Chrome can create numerous cache folders after you visit some web sites. The size of the cache for one site can even reach up to 9 GB. This is quite surprising, but it is true.
As time goes on, the free space on the startup disk becomes less and less. One day, you may receive the startup disk full alert.
Besides, when a warning of Your disk is almost full pops up, it also means that there is not enough space on your Mac. It is equal to startup disk full. Likewise, you need to remove some files to free up disk space on your Mac computer.
What Does It Mean When Your Startup Disk Is Full?
When does it mean when you receive your startup disk is almost full alert?
It has two main influences:
1. You will soon run out of space on the startup disk.
Your startup disk is almost full is an early warning for you. It reminds you of cleaning up the startup disk. However, if you continue to use your Mac without cleaning up disk space, more and more data will be saved to the startup disk. One day, your Mac will run out of space and you will not use the machine as normal.
2. Your Mac computer will run slowly.
Some of you may think that your Mac computer will not be affected when there is space in the startup disk no matter it is much or less. It is wrong.
A Mac computer can convert the available free space on the startup disk into virtual memory that you use for day-to-day operations. In theory, there should be at least 10% of free disk space for your Mac to operate. If not, your Mac computer will run slowly and even face big trouble like Mac frozen.
When the machine detects that the available space on the startup disk is insufficient, it will give you a warning. This aims to remind you it’s time to clear the startup disk on your Mac.
What should you do when your startup disk is full on your Mac? In the following part, we will show you some solutions.
How to Clear the startup Disk?
If you want to clear your Mac startup disk, you need to delete the unnecessary files on it. Before doing this, you can check the storage space on your Mac.
How to Check the Storage Space on Your Mac?
- Click the Apple menu from the top-left corner of the screen.
- Click About This Mac from the drop-down list.
- Switch to the Storage section.
After these three steps, you can see the storage information of your Mac disk, including the files’ types, the free space on the drive, and more.
If your Mac Startup disk is full, you can do these things to free up disk space:
How to Clean the Startup Disk on Your Mac?
- Remove the App Cache from your Mac.
- Empty Trash.
- Delete the unnecessary Time Machine backup snapshots.
- Delete browser cache.
- Remove language packs.
- Use Startup Disk Full Fixer.
Tip 1: Remove the App Cache from Your Mac
The app cache files are necessary when you want to speed up processes. Once you complete the process, the cache files become useless. But these cache files will stay on the startup disk for a long time unless you manually delete them. When they are useless, they are junk files. To clean up your Mac startup disk, you need to remove them from the machine.
- Go to Finder > Go > Go to Folder.
- Type ~/Library/Caches.
- Go into each folder and then delete the files in it. You can also choose to only delete the files that take up the most space.
- You can repeat the above three steps for /Library/Caches to remove the App cache.
Tip 2: Empty Trash
When you delete files from your Mac, they will be moved to Trash. The files on Trash also occupy space on your Mac startup disk. As long as you are sure that you don’t need to use these files anymore, you can empty Trash to free up disk space.
To do this job, you just need to open Trash and then click the Empty button on the top-right side to remove files from your Mac. Since then, there will be more available disk space on your Mac.
Tip 3: Delete the Unnecessary Time Machine Backup Snapshots
Most people would like to use Time Machine to back up their Mac files to an external hard drive. You may think that the backup files are save to the external hard drive. But that’s not all. During the Mac data process, the local snapshots also automatically start once every 24 hours. That’s right. The snapshots are saved to your Mac, taking up disk space.
You can delete the unnecessary Time Machine backup snapshots to release space on the startup disk.
- Open Finder.
- Go to Go > Utilities.
- Double-click Terminal to open it.
- Type sudo tmutil disablelocal into Terminal, and press Enter.
Do you know how to delete Time Machine backups on your Mac computer? In this post, we will show you different cases and different methods.
Tip 4: Delete Browser Cache
How Can I Get More Disk Space
Every time you visit a new web site using your web browser, some cache files will be created and saved to your Mac disk. This can help you to quickly a previous page again. But these files can also use up your disk space. So, you can delete these browser cache files to release more space on your Mac:
- Open your web browser.
- Click the History tab and then select Clear browsing data.
- Select the cache files you want to delete like Cookies, site data, Cached images and files.
- Choose how far back you want to delete
- Click the Clear browsing data button to delete the selected cache files.
Tip 5: Remove Language Packs
Most apps contain language packs (which are also known as localization files). These packs allow you to switch between languages when using the app. They are useful, but you need to admit that you only need one or two languages. The rest language packs just waste your disk space. You can choose to delete them:
- Open Applications.
- Right-click an app and then select Show Package Contents.
- Click Contents.
- Click Resources.
- Delete the language packs you don’t need to use. The pack files are ending in .Iproj.
- Repeat these steps for all other apps on your Mac.
Tip 6: Use Startup Disk Full Fixer
Startup Disk Full Fixer is the best free app for you to perform a quick Mac disk cleanup. It can help you to get more free storage space in less than a minute. You can go to the Mac App Store to free download this application. Then, you can open it and use it to clean up your startup disk to get rid of the low disk space warning. It is a safe program. You can feel free to use it.
How to Free up Disk Space on Your Mac?
Your disk is almost full is another alert that prompts you to clear disk space on your Mac computer. We have published a related article to free up disk space on Mac: How to Clear Disk Space on Mac and Recover Mac Data?
How Do I Free Space On My Startup Disk Mac Air
If you have some other good ideas to release disk space on Mac, you can share them with us in the comment. We will appreciate that.
If You Delete Some Important Files on Your Mac by Mistake
As you can see, it is a file deletion process when you clear the startup disk on your Mac. During the process, you may delete some of your important files by mistake. Once these files are permanently deleted from your Mac computer, you will be unable to restore them from Trash. If you want to retrieve them, you can try the free Mac data recovery software: Stellar Data Recovery for Mac.
This software has a trial edition. You can use it to scan the Mac disk you want to recover data from and then check whether it can find the files you want to rescue. If yes, you can upgrade it to a full edition and then use it to recover all your needed files to a suitable location. You can go to the MiniTool download center to get this trial edition.
1. Open this software.
2. Select the data types you want to restore. If you want to recover all, you can turn on the button for Recover Everything.
3. Click the Next button to continue.
4. This software will list all the drives it can detect. Then, you need to select the drive you want to recover from. If you want to perform a deep scan, you need to switch the button for Deep Scan to ON.
5. Click the Scan button to start the scanning process.
6. When the scanning process ends, you can see the scan results. By default, these files are list by Classic List. There are two other lists including File List and Deleted List. If you only need to recover the deleted files, you can switch to Deleted List and then find your needed items.
7. This software allows you to preview files. You can just double-click on one file to preview it and confirm whether it is your needed file.
8. If you are sure this software finds your needed files, you can go to MiniTool official site to get a license of an advanced edition to upgrade this software. After that, you can select files and then save them to a suitable folder. Here, you need to know that the destination folder should not be the original one. Otherwise, the deleted files could be overwritten and become unrecoverable.
Bottom Line
When your startup disk is full or you see the alert of your disk is almost full on your Mac, you can just try the methods mentioned in this article to free up disk space and remove the warning. If you mistakenly delete important files, you can use Stellar Data Recovery for Mac to get them back.
Should you have any related issues, you can let us know in the comment. You can also contact us via [email protected].
Startup Disk Full FAQ
Contents
- How to free up space on a Mac?
- How to see the used Storage on a Mac?
- How to Fix Mac Startup Disk Full with pCloud Drive?
- Note: If you have very low disk storage you must do the following:
- Example:
If you are a Mac user and you have a smaller HDD Macbook, chances are you have seen this message at least once: “Your startup disk is almost full” or you want to know how to free up space.
In this article, I will explain why this happens and how to never see this warning ever again!
How to free up space on a Mac?
What is a “Mac Startup Disk”?
Your Mac startup disk is a volume or a partition of a drive that contains a usable operating system. You can set your Mac to automatically use a specific startup volume, or you can temporarily override this choice at startup.
What this means is that the startup disk is the “home” of all the files needed for starting your Mac and using it.
Without a startup disk, you will not be able to switch on your computer.
Why is my Mac “Startup Disk Full”?
In short, you have too many files. When this happens, it slows down all processes on your computer – see, in order to complete some tasks, your computer needs space to store temporary files and system files. When this happens and you run low on storage, the operating system needs to decide whether it can delete some files in order to complete the task. Most of the time this is not possible and the computer crashes or becomes very, very slow.
It is recommended that a startup disk should never be at above 85% of its capacity in order to work properly.
How to see the used Storage on a Mac?
If you want to see the exact types of files that are using the storage on your Mac:
Click the Apple in the top-left corner
Click on “Storage”
Currently, I have 73.9 GB used and 425.2 GB Free.
Most of my used storage is from “Other”
What is “Other” in the Mac Storage?
According to Apple, in OS X El Capitan or earlier versions, “Other” files are those that your Mac doesn’t recognize as belonging to any other category. These include files within disk images or archives, data stored by apps such as Contacts or Calendar, and app plug-ins or extensions. When your Mac is running in Safe Mode, all files are categorized as Other.
How to Fix Mac Startup Disk Full with pCloud Drive?
What is pCloud Drive
pCloud Drive is a desktop application that creates a secure virtual drive on your computer, which you can use to easily store, access and work with your files in the cloud.
To add files and folders to your pCloud Drive, simply drag and drop* your data into your virtual drive. You can then be sure that they are safely stored in the cloud and synchronized on all of your devices.
*for this to work fast you need to have at least some free storage on your startup disk. If you don’t, keep reading!
pCloud Drive provides a number of additional functionalities, such as integrated file sharing and synchronization through your computer.
Note: If you have very low disk storage you must do the following:
Choose the folder you want to Sync with pCloud:
Click on the pCloud icon and choose Sync to pCloud:
Create a folder on pCloud Drive:
Wait for the Sync to be completed:
This is very Important! After the Sync is finished, you must stop it with the cross icon:
After you stopped the Sync you can delete the files you just synchronized:
You can go to pCloud Drive and see the files you synced and use them as if they are on your computer! (A green icon means everything is synced.)
The app significantly eases your work upon performing file operations in the cloud, because with pCloud Drive you can work with your files using any software on your computer.
What this means is that if I have a vacation video in pCloud Drive I can watch it with no problem with the default video player on my computer. In my case VLC Player.
The best thing is that since the video is in pCloud Drive it is not actually on my computer but it’s in the cloud and does not take ANY of my Startup Disk Space!
Another awesome thing is that I can watch this video also on my phone with the pCloud mobile apps OR if I’m using a different computer that does not have pCloud Drive, I can watch it via Chrome, Firefox or any other internet browser. I just need to go to my.pcloud.com and sign in. Here is what I see:
Same thing works for:
– Documents – I can open and edit them with any text editor with pCloud Drive or access them from any of the other apps. The same works for worksheets, PDFs, presentations etc.
– Photos – I can open them, see them or edit them with Photoshop or any other image editor.
– Audio files – I can listen to them on my default music player or with pCloud mobile and web apps music player. I can even create playlists within pCloud.
– Every other type of file – As long as I have an app or a program to open the file with, there is no problem for pCloud Drive.
Nice right?!
What this means is that you can move all the files that are using your Mac Startup Disk Storage in pCloud Drive.
That way they WILL NOT use any of the space on your computer and you will still have access to them and use them with the apps installed.
Example:
I have a 512GB SSD Macbook Pro Retina. I also have a pCloud Premium account which is 500GB of storage. This makes my Macbook capable of storing 1TB worth of files.
Sharing with pCloud Drive
You can share any file or folder that you have in pCloud Drive.
You just right-click on the file or folder you want to share and choose if you want to invite someone to the folder or create a so called Download link.
This way you can collaborate with people or share the vacation photos and videos with your friends for example.
pCloud Speed
When you use pCloud Drive, you don’t even understand that your files are not stored locally. That’s because of the super high speed that we offer for uploading and downloading files. We compared our upload and download speed with the ones of Dropbox and here are the results for 1.12GB file:
pCloud Security
To guarantee your files’ safety, pCloud uses TLS/SSL encryption, applied when information is transferred from your device to the pCloud servers.
Your files are stored on at least three server locations in a highly secure data storage area.
Optionally, you can subscribe for pCloud Crypto and have your most important files encrypted and password protected. We provide the so-called client-side encryption, which, unlike server-side encryption, means that no one except you will have the keys for file decryption.
Conclusion
A lot of Mac users have the same frustrating problem. Startup Disk Storage fills up quickly on smaller versions (128GB and 256GB) and if you use it for work, you can fill up a 512GB Mac very fast too. Especially if you are a designer or a video editor for example, and work with large files. And even if you are not creating huge files, with the pace we are creating information is growing very fast:
Just think about this: smartphones and cameras that can shoot RAW files and in 4K, which means you’ll have photos and videos of amazing quality – but they will also take a lot of memory so the more space you have, the better.
pCloud Drive helps you virtually add storage to your Mac (or any PC for that matter). You can move your photos, videos, music, documents any other kinds of files there and use them as if they are on your device with the apps you are used to. Also, you can access them on a smartphone via the pCloud mobile apps for iOS, Android, and Windows 10 Mobile, and in a web browser when you go to the website and sign in.
P.S.
If you never want to run out of storage on your iPhone too, read this.
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