Mac Lento? Free Space from System Data

If your Mac began to report the scarcity of storage with insistent alerts, and navigating in the settings you came across in the item “System Data” – once known as “Other” in the less recent versions of macOS – which devours inexplicably gigabytes on gigabytes, often overcoming the space occupied by photos, documents and applications, then you are in the right place. This category, for many a true mystery, is a generic container that collects a multitude of elements, filling the hard drive without you notice. When the problem becomes obvious, learning to free this space becomes a priority to restore the fluidity and efficiency of your work.

This complete guide has been designed to demystify the “System Data” and provide you with all the most effective strategies to clean your Mac from these files that, although invisible, are consuming valuable space. We will address the problem from the bases, then to the concrete action, with particular attention to the precautions necessary to avoid deletion of important files. Moreover, for those who prefer more immediate solutions, we will also attend specialized programs that can automate much of the process.

Understanding the “System Data”: the Svelato Mystery

Before proceeding with any cleaning operation, it is essential to understand what lies behind the item “System Data” on your Mac. This category, now so labeled in the latest versions of macOS (in the past “Other”), is a common source of frustration for many users, as it tends to occupy a considerable space without a clear indication of its content. This is not a well-defined category as “Documents”, “App”, “Photo” or “Mail”, but rather a “general customer” for all that does not fall elsewhere.

But what exactly does this vast category include? Here is a list of file types that typically make up the “System Data”:

• Cache file: These include system cache, browser cache, and application cache. It is temporary data that your Mac stores to speed up loading applications and websites.
• Temporary and system files: They are files created by macOS and various applications during their normal operation. Many of these are not automatically deleted once they are no longer needed.
• Disk images and archives: Files with extensions such as .dmg (install disk images) and .zip or .rar (compressed archives) that you may have downloaded and forgotten.
• Plugins and extensions: Additional components for web applications and browsers that, although small individually, can be added over time.
• Old backup of devices: Obsolete backups of iPhone or iPad saved on your Mac via Finder, which can occupy tens, if not hundreds, of gigabytes.
• Files not recognized by Spotlight: Any file that the macOS search system is unable to classify in one of the default categories often ends up being entered in System Data.

The heterogeneous nature of these elements explains why the “System Data” can grow unmistressed, making their management a priority for anyone who wants to keep their Mac efficient.

Essential Precautions Before Cleaning

Freeing space on your Mac is certainly beneficial, but it is an operation that requires caution. Intervention without due attention on the “System Data” could in fact compromise the proper functioning of macOS or applications. For this reason, it is essential to adopt some precautions:

• Understand what you delete: Remove only the files you know from and function, or you're sure you don't need anymore. Avoid eliminating vital elements for the operating system.
• Make a preventive backup: Before undertaking any deep cleaning operation, it is highly recommended to create a complete backup of your data. In case of unexpected errors, you can easily restore your system.
• Avoid risky commands: Do not use Terminal commands as sudo rm -rf if you are not an experienced user and do not fully understand the implications of each action. An error could cause irreparable damage to the operating system.
• Reboot your Mac: After making significant file deletions, restarting your Mac is a good practice. This allows the system to update the available space correctly and recalibrate its resources.

By acting with caution and awareness, you can recover valuable space without risk.

How to Check the Space occupied by the “System Data”

The first step towards effective cleaning is to know exactly how much space the “System Data” are occupying on your disk. Here's how to do:

1. Click on the icon of the System Settings (the gear) in the Dock, in the Applications folder or through the Apple menu on the top left.
2. In the left sidebar, select the item General.
3. Click on Space.
4. Wait a few moments for the system to load and display the distribution of storage space through colored bars.

In this screen, you will see different categories: Documents (red), Applications (orange), System Data (dark gray) and so on. The dark grey bar will show you the exact amount of space eaten by the “System Data”. This information is crucial to assess the extent of the problem and decide whether to proceed with cleaning.

While you are in this section, I suggest you activate a very useful function for automatic maintenance: automatic deletion of items in the Recycle Bin. Section Tips, locate the item “Automatically empty the Recycle Bin” and click on the button Activate... Confirm the operation. From now on, the files that remain in the Recycle Bin for more than 30 days will be deleted automatically, freeing you from a thought and recovering space without manual interventions.

Strategies to Delete “System Data” from Your Mac

Now that you understand what “System Data” are, what precautions to adopt and how to monitor its space, it is time to move to action. Here are the most effective strategies to clean up your Mac.

1. Manage Temporary Files and Cache

Temporary and cache files are data that the operating system and applications create to improve performance, acting as a “scorciatoie” for faster access to information or as a backup to cancel changes. The browser history, cookies and system logs are part of this category. Their elimination can free a considerable amount of space.

Attention: deletion of macOS system cache must be carried out with utmost caution, since inappropriate intervention can cause temporary slowdowns or, in rare cases, system blocks, usually solved with a restart. The cache deletion of individual applications can initially slow them down, but they will return to normal after a short time.

To proceed with manual cancellation:

1. Close all active applications.
2. Open the door Finder (the smiley face icon in the Dock).
3. In the top menu, click on Go, then press the button option (iii) on the keyboard and select the voice Library what's up.
4. Inside the Library folder, open the folder ♪.
5. Select the items inside (you can select them all with Comando + A), right-click any of them and choose Move to Recycle Bin.
6. Repeat the same operation for the folder Logs, which is always within the Library and contains no longer necessary log files.
7. Finally, right click on the icon of the Basket in the Dock and select Empty the Recycle Binconfirming the operation.

For browser cache, many programs offer internal options. For example, in Safari, you can empty the cache by pressing option + cmd + E, or accessing the menu Development (which you can activate) Safari > Settings > Advanced > Show Web Development Features) and select Empty the cache.

2. Clean the Folder Download

The folder Download is often a temporary and useless file recipe: installer of already installed applications, PDF beds once, images, compressed archives and documents that you no longer need. Clean it can quickly release several gigabytes.

1. Access to System Settings > General > Space, as seen previously.
2. In the section on Documents, click on the icon i circled.
3. On the screen that opens, select the tab Download.
4. Here you can delete files directly (by selecting and clicking Delete..) or view them in the Finder for more detailed control (clicking Show in Finder). If you decide to delete them from the Finder, right click the file and select Move to Recycle Bin.

3. Remove Resid Files from Applications

When an application is simply dragged into the Recycle Bin, it often leaves behind “resident” files: preferences, specific caches, support data and libraries that continue to occupy space. To eliminate them:

1. Open the door Finder.
2. In the top menu, click on Go and select Go to the folder.. (or use shortcut Maiusc + Comando + G).
3. In the window that appears, paste the path ~/Libreria/Application Support and press Enter. Here you will find folders related to installed or uninstalled applications. Locate those associated with apps you no longer use, right click and choose Move to Recycle Bin.
4. Repeat the operation with the path ~/Libreria/Preferences. Here it searches for files with names starting with “com.” followed by the name of the developer or application (e.g. com.nomeapplicazione.plist). Delete those related to uninstalled apps.

4. Delete Old Backup iOS/iPadOS

IPhone or iPad backups, if stored on your Mac, can occupy a surprising amount of gigabytes, especially if you have accumulated several over time. Eliminating them is a great way to recover space.

1. Connect your iPhone or iPad to your Mac via cable.
2. Open the door Finder and select the device name in the left sidebar, under “Positions”.
3. In the Finder window, click the button Manage backups.. in the backup section.
4. It will open a window that lists all device backups with the date of creation. Select outdated backups that you no longer need and click on Delete backup.

Alternatively, you can directly access the folder where macOS keeps backups: ~/Library/Application Support/MobileSync/Backup. Inside you will find subfolders with alphanumeric names. The folder editing date can help you identify older backups to delete. Move to the Recycle Bin folders you want to remove.

5. Find and Delete Big Files with Smart Folders

One of the most efficient techniques to recover space is to locate larger files on the disk and decide if they are still needed. Finder smart folders are perfect for this purpose.

1. Open the door Finder and go up File > New smart folder.
2. In the search window, click the button + (top right) to add a criterion.
3. In the first drop-down menu, select Type, and the second leaves Any.
4. Click again on the button + to add a second criterion. This time, select File size.
5. In the next drop-down menu, change the option from “equal to” to greater than.
6. In the text field, type a value (e.g. 100) and in the final drop-down menu select MB. This way, the Finder will look for all files larger than 100 MB.
7. Wait for the completion of the search. Click on the column Dimensions to order files from the largest to the smallest (a downward arrow will indicate the descending order).

Now you can review the list and identify video files, disk images, archives or other large documents that you no longer need. Select the ones you want to remove, right click and choose Move to Recycle Bin.

6. Delete Plugins and Extensions

Plugins and extensions, especially browsers, also contribute to the employment of disk space, although usually to a lesser extent than other elements. To get rid of it, you will have to act from the individual program settings.

For example, for Safari:

1. Start Safari.
2. Click on the menu Safari top left and select Safari extensions...
3. Section Extensions, select the extension to be removed from the list to the left and click on the button Uninstall right.

If a notice indicates that the extension is part of an application and requires the uninstallation of the main program, follow the instructions to remove the full application (typically dragging the app into the Recycle Bin from the Applications folder).

For other browsers like Chrome or Firefox, the procedure is similar and is usually found in the browser’s “Incompatible” or “Additional Components” settings.

Automated Mac Cleaning Solutions

For those who find manual procedures too laborious or who want a faster and more automated approach, there are several programs specialized in cleaning the Mac. These software are designed to automatically locate temporary files, caches, duplicates, large files and other unnecessary elements that contribute to the accumulation of “System Data”.

Many of these tools offer additional features such as complete application uninstallation (including residual files), system general performance optimization and start-up management. Trusting these programs can be an effective way to keep your Mac clean and performing with minimal effort. The choice of the software depends on your needs and preferences, but it is a valid option for periodic maintenance.

Conclusion: A Mac Faster and Organized

The management of storage space on your Mac, in particular the cleaning of the “System Data”, is a fundamental step to ensure its longevity and optimal performance. By freeing the disk from unnecessary and obsolete files, you will not only eliminate the annoying warnings of insufficient space, but you will also notice a sharp improvement in the speed of application execution and in the general reactivity of the system.

With manual strategies, accompanied by the appropriate precautions, you now have the tools to regain control of your digital space. Whether you choose to intervene manually or rely on automated solutions, the important thing is to maintain a regular cleaning routine to fully enjoy the potential of your Mac.