How to Free Clean Up Startup Disk on Mac

Summary: In this article, we'll share a few DIY methods to clean up your Mac start-up disk without spending a penny.

Clean your cluttered Mac storage drive with the SpeedUp Mac app. Free for 30 days.

Using your Mac regularly creates a lot of junk, Trash, leftovers, and whatnot. And because of that, your Mac starts running slow. Without dealing with this issue, you continue to use your slow Mac as it is. The problem only becomes real when your Mac's slow speed starts interrupting its performance.

Don't worry. There are several ways you can use to free up your Mac hard drive of unnecessary data and enhance the performance of your Mac. The next sections describe a few methods to clean up your Macintosh HD start-up disk in macOS.

1. Native Method to Free Clean Up Start-up Disk

To save storage space, macOS Sierra or later uses Optimized Storage features. Such macOS automatically removes old fonts, languages, and dictionaries that aren't used on your Mac. When storage space is required, macOS clears caches, logs, and other unneeded data. The operating system reminds you to delete installers of the used apps. It also detects duplicate downloads in Safari and keeps the most recent version.

Free for 30 Days

Besides, you can clean your Macintosh HD manually and boost your Mac performance just like new. All you need to do is:

1) Go to the Downloads folder, trash the unneeded files, then empty Trash.

2) Navigate to your Macintosh HD and remove duplicate files.

3) In the Mail app, go to Mailbox Erase Junk Mail. Then go to Mailbox Erase Deleted Items to remove the email permanently.

4) Move files from Macintosh HD to an external storage drive.

5) Compress your files to save start-up disk space.

2. SpeedUp Mac Software to Clean Up Start-Up Disk

SpeedUp Mac is a cutting-edge clean-up software that allows you to clean up your Mac’s start-up disk efficiently with a click of a button. Steps are as follows

Step 1) Download and install the 30-day free SpeedUp Mac software on your MacBook, iMac, or Mac mini.

Free for 30 Days

Step 2) In macOS Mojave or later, provide Full Disk Access permission to SpeedUp Mac to make it run flawlessly.

Step 3) Launch the software. From the left pane, select the boot volume, then click Scan.


Step 4) During scanning, the software displays scan status. If you want to stop the scanning process, click Stop. Else, let the scan complete.


Step 5) After scanning is over, the software displays various tabs on the left pane with Cache Files selected by default. Unselect essential files, then click SpeedUp Now to clean user caches.


Step 6) On the Remove Files message box, click Yes. Then, click OK on the “Process completed successfully” message box.

Step 7) Continue the speedup process by selecting the required tab (Manage Extensions, Log Files, Duplicate Files, Large Files, Trashes & Leftovers, System Junk, and Language Files) from the left pane one at a time.

Note: To perform the Mac clean-up and optimization task after the 30-day free trial period, activate the software at a nominal 1-year subscription charge.


Implement SpeedUp Mac software to clean up start-up disk in macOS with a click of a button. Also, schedule the clean-up task at a specific time to automate the Mac optimization process. Download and install the software in macOS now to avail of the 30-day free trial offer.

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