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Tips to safely erase free space on your Mac | Blog MacflyPro.com

18.10.2021

As soon as the memory on your laptop's drive approaches zero, system performance will decrease noticeably. The reasons for this are simple: the system creates a large number of temporary files for running applications. Backups usually occupy a lot of space unless you use an external hard drive. If there is almost no available space left, the system needs to delete old files to free up space, which increases the running time of the applications.

Why erase free space on your Mac hard drive?

Apple's operating systems, iOS and OS X, are famous for their speed. Mac OS X for computers, unlike iOS, is an open system, so sometimes it can slow down due to user actions or installed third-party programs.

It is quite easy to check if there is available free space on your disk and how to wipe Macbook Pro. All you have to do is start the Finder and turn on the status menu display through the View menu item. It will display the available disk space.

The easiest thing to do is to avoid situations where the free disk space is less than 2 GB. To do this, it is highly advisable to know how to erase Macbook unnecessary files from the Downloads folder, as well as periodically delete files from the Trash. If you still don't have enough space for all your files, consider buying an external hard drive.

What Happened to Secure Erase Free Space in macOS?

Hard drives store data on spinning disks have been the standard type of drive in the computer industry for many decades, and are well known, so there are many methods for cleaning them, that is, safely removing data. There is even a SECURITY ERASE UNIT command, better known as Secure Erase, in the ATA specification, the standard communication interface between the computer and the disk, which can be implemented by hard disk drive (HDD) and solid-state drive (SSD) manufacturers. Running the Secure Erase command on an HDD or SSD will destroy the data in all cells and return the drive to its factory state.

The macOS Disk Utility's secure HDD erase options are not suitable for SSDs. Apple's documentation says that these options "are not needed for SSDs because the standard erase makes it difficult to execute data recovery from an SSD.” But difficult doesn't mean impossible, so the company recommends enabling File Vault encryption when you start using an SSD.

More recent versions of macOS and of OS X, such as El Capitan, no longer include a Secure Erase Free Space feature in the Disk Utility. Since most Macs now have solid-state drives (SSDs) replacing conventional hard disk drives, Apple doesn't consider this feature necessary. When you erase erase macbook pro files on a regular SSD, this data is very hard to restore.

Erase your free space

Any user has sent files to the Trash, this is the common way how to wipe Macbook. You can do this regularly or weekly to speed up Mac performance.

  • hold down the Control key on the keyboard;
  • select the Trash icon;
  • Hit Command on OS X Yosemite / higher. Alternatively, click Control or Option instead;
  • Click Secure Empty Trash!

Mac securely empty trash does not automatically guarantee however that the files will disappear for good. Of course, there will still be traces of codes and these can then be utilized to recover the information.

Securely Wipe the Free Space on Your Mac Using MacflyPro

MacflyPro is a popular software, knowing how to wipe Mac, designed to clean the hard disk from debris, it can also reliably delete data without compromising your computer security. You can optionally wipe the entire drive or just the free space with one of four algorithms. In the second case all system and user files will remain untouched, but the unoccupied space will be reliably wiped and unrecoverable. Some of its main functions are:

Cleanup Clean your system junk files with one click: temporary files, unused browser extensions, RAM cleaner, email attachments, duplicate files,p-and-click games, etc.
Smart Assistant Scans your system 24/7: before the amount of system junk files hinders the work of your MacBook or iMac, you will be notified about an offer to begin cleanup with just one more click!
Privacy The Shredder deletes data irrevocably leaving no trace behind. The tool wipes confidential data from web browsers.
Big Files The tool provides a service that makes it easy to view and manage your large files across different devices.

MacflyPro is the ideal solution for users looking how to wipe a Macbook Pro to improve the performance of their Mac by removing all unnecessary files and applications.

Prevent Private Data from Being Recovered

There are situations when you need to know how to erase Macbook Pro irretrievably, and you need to do it in such a way that they can no longer be recovered. This article is about how to irretrievably delete a file. Why should files be permanently deleted? Each user may have his own reasons! As a rule, such a reason is important and confidential information, which should not fall into the wrong hands.

The point is that when you delete a file in the usual way, it can easily be restored later. The usual way means to delete a file to the recycle garbage can, followed by emptying it, or direct deletion, i.e. bypassing the recycle garbage can (using Shift + Delete).

Files that were deleted this way can be restored later with a special program, with a probability of nearly 100%. Why practically? Simply, if after deleting a file you were writing to the hard drive, there is a probability that the deleted file will be overwritten with new information. But as a rule, deleted files are not overwritten completely, but only partially. Even if you format the hard drive completely, it will not help you. After formatting, the data is also perfectly recoverable!

Sometimes it may be necessary to delete a file permanently, leaving no possibility of data recovery. This is possible, but the procedure is very resource-intensive, so it is best to run the process in the evening or leave a working computer for the weekend. The procedure is as follows:

1. turn off all programs;

2. open Finder, under Programs > Utilities you will find Disk Utility. Run it;

3. on the left side of the window, you will see a list of internal, external and CD-DVD drives. If it is a hard drive, you will see first the drive with its capacity and model, and below with an indentation you will see your logical drive. For example, Macintosh HD. Highlight your Macintosh HD drive and click on the Erase tab;

4. click the Erase free space button. In the window that opens, select the number of passes (how many times the disk space will be filled with zeros). In general case, 3 passes is enough, but better to set more;

5. click the Erase button.

Process is now running. But, how to completely wipe a mac: to avoid having to clean your computer all the time, you can set up the recycle bin and it will always delete files without the possibility of restoring them. To do this:

1. open the Finder. On the Menu bar, click Finder > Settings or press the key combination CMD +;

2. click the Extras tab, check the option Empty Trash Irreversibly.

All files will now be deleted irretrievably, however it should be noted that this does not apply to emails from the Mail program (the Mail program has its own Trash, not linked to the system Trash). If safe removal of mail is important to you it is worth repeating the above procedure at least once a month.

You can solve the problem of irretrievable deletion of files by using a special programme, like Macflypro. There are many such programmes available, some for a fee and some for free.


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