Mac cleanup software saves people hours and hours of time. On average, most Mac users have over 62 GB of junk that slows down their Macs and prevents them running at peak performance.
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Catalina Cache Cleaner is an award winning general purpose tool for macOS X. CCC makes system maintenance simple with an easy point and click interface to many macOS X functions. Novice and expert users alike will appreciate the powerful toolset CCC provides. Catalina Cache Cleaner is one of the world's leading maintenance tools with millions of downloads around the globe.
Maintenance
Catalina Cache Cleaner is a one stop solution for all of your macOS X maintenance needs. Intel or PPC, Tiger or Catalina, CCC has the tools to keep your system running at its best. CCC Documents and the CCC Engine maintain system health by providing full automation of common maintenance chores including virus scanning of internet downloads. The CCC Engine can even repair permissions automatically after software installations. With the CCC Engine, powerful system maintenance and antivirus can be completely transparent or as close as your menu bar.
Optimization
Catalina Cache Cleaner can improve system performance by tuning internet and file cache settings, implementing ram disks, and cleaning out various cached and stale data. CCC includes tools to help optimize files and memory. CCC can recover wasted disk space by eliminating language localization files and slimming Universal Binaries.
Customization
Catalina Cache Cleaner lets you control your macOS X experience. Turn off Spotlight or Dashboard, or turn on a Login Items Folder. CCC can tweak many macOS X features to suit your tastes. All without permanently altering or harming your system.
Disaster Planning
Catalina Cache Cleaner lets you create a bootable Installer USB drive from your Catalina download that will boot and install Catalina on any supported machine. Catalina Cache Cleaner lets you create bootable Emergency Disks that include system repair utilities and CCC's powerful cache cleaning functions. If disaster strikes, the power of Catalina Cache Cleaner is available at the command prompt in Single User Mode. Registered users of CCC can install a portable version on a flash drive or iPod. Catalina Cache Cleaner Portable runs on any supported Mac and is a great tool for testing hard drives, screen pixels, batteries, ram, and more before buying a machine.
Antivirus
Catalina Cache Cleaner helps protect your system from malware. CCC adds three additional layers of malware protection to Catalina, and ships with the powerful ClamAV antivirus built in. CCC can scan your downloads on the fly providing industrial strength virus protection from Mac and Windows threats.
And even more features...
Read the Users Manual
Maintenance
Catalina Cache Cleaner is a one stop solution for all of your macOS X maintenance needs. Intel or PPC, Tiger or Catalina, CCC has the tools to keep your system running at its best. CCC Documents and the CCC Engine maintain system health by providing full automation of common maintenance chores including virus scanning of internet downloads. The CCC Engine can even repair permissions automatically after software installations. With the CCC Engine, powerful system maintenance and antivirus can be completely transparent or as close as your menu bar.
Optimization
Catalina Cache Cleaner can improve system performance by tuning internet and file cache settings, implementing ram disks, and cleaning out various cached and stale data. CCC includes tools to help optimize files and memory. CCC can recover wasted disk space by eliminating language localization files and slimming Universal Binaries.
Customization
Catalina Cache Cleaner lets you control your macOS X experience. Turn off Spotlight or Dashboard, or turn on a Login Items Folder. CCC can tweak many macOS X features to suit your tastes. All without permanently altering or harming your system.
Disaster Planning
Catalina Cache Cleaner lets you create a bootable Installer USB drive from your Catalina download that will boot and install Catalina on any supported machine. Catalina Cache Cleaner lets you create bootable Emergency Disks that include system repair utilities and CCC's powerful cache cleaning functions. If disaster strikes, the power of Catalina Cache Cleaner is available at the command prompt in Single User Mode. Registered users of CCC can install a portable version on a flash drive or iPod. Catalina Cache Cleaner Portable runs on any supported Mac and is a great tool for testing hard drives, screen pixels, batteries, ram, and more before buying a machine.
Antivirus
Catalina Cache Cleaner helps protect your system from malware. CCC adds three additional layers of malware protection to Catalina, and ships with the powerful ClamAV antivirus built in. CCC can scan your downloads on the fly providing industrial strength virus protection from Mac and Windows threats.
And even more features...
Read the Users Manual
Requirements: Universal Binary requires macOS X 10.4 - 10.15
Download Catalina Cache Cleaner 15.0 (96.1 Mb)
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Made in Alaska
macOS Sierra is a fantastic update arriving from Apple to make us love our Macs even more. It has plenty of new features, and also has the same easy clean install and upgrade flow as did the previous OS.
LEARN MORE: How to Clean Install the macOS High Sierra?
Note, that getting an upgrade is the easiest way of installing the new macOS. It saves all your personal files, apps and user data, while a so-called clean install of Sierra will erase all data on the startup drive and replace it with a clean copy of OS. But, if you like an idea of giving your Mac a fresh start with a new macOS and nothing else, a clean install is the right option for you.
Also, in case you’ve noticed that with time your Mac is running slower, it has unusual startup or shutdown issues and crashes, a clean install may be a good way to get back the speed and fix the problem.
First of all, make sure that your Mac is able to run MacOS Sierra.
Then, you should prepare your Mac for the installation:
- Download macOS Sierra Installer from the Mac App Store. Once the download completes, it will automatically launch. Quit macOS Sierra Installer app without performing the installation.
- Take a 16GB or larger USB flash drive to create a bootable Sierra installer. This flash drive is only needed for a clean install on your Mac’s startup drive. But if you plan to clean install on a non-startup drive (you have and extra HDD or SSD on your Mac), you don't need the USB.
- Backup your Mac to ensure your personal data is intact.
Clean Install macOS Sierra on Your Mac’s Startup Drive
If you're going to perform a clean install on the startup drive, you need to backup your data, create a bootable copy of the installer, and, finally, boot from the bootable installer. So, let us begin.
Step 1: Clean up your Mac
To make sure Sierra has no troubles installing and works fine after, you need to get rid of system junk on your Mac first. You could clean it up manually, but using a cleaning app like CleanMyMac X will save you hours on that. Junk removal with CleanMyMac takes only a few minutes. Download CleanMyMac for free, launch it, click Scan, and then Clean. Now you’ve got plenty of free space and your Mac is free from system trash.
Step 2: Back up your data
Note: A clean install of macOS Sierra on the startup drive completely erases all data on that drive: all your files and documents, including music, movies, pictures, and even apps.
So, If you skip this step, you wouldn’t be able to recover your data if something goes wrong.
To backup your Mac:
- Open Time Machine.
- Click Select Disk.
- Choose where you wish to save your files (to the external drive or to the cloud storage).
- Click On to turn Time Machine on.
- Click on the “arrow clock” icon and select Back Up Now in the menu bar at the top of the screen.
Step 3: Clean Install macOS Sierra on your startup disk
1. Create a bootable flash drive with macOS Sierra.
First, make sure your USB flash drive is formatted and named as “Untitled”.
![Cleaner Cleaner](/uploads/1/2/5/7/125705701/421254832.png)
- To format a USB drive launch Disk Utility (Finder -> /Applications/Utilities/Disk Utility).
- Select your USB drive under External.
- Click the Erase tab at the top of the Disk Utility window. Select Mac OS Extended (Journaled) from the format list. Then, click the Erase button. When the process is complete, click Done, and close the Disk Utility window.
- If your drive is named something else, you need to rename it (Open Finder -> right click on the USB drive and choose Rename).
Now, your USB flash drive is ready.
- Launch Terminal (Finder Applications Utilities Terminal)
- Enter the following text into Terminal:
sudo /Applications/Install macOS Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install macOS Sierra.app --nointeraction - Hit the Enter key.
- Terminal will ask you for an admin password (the one you use to log in). It won’t display characters when you type, so just do it. Hit Return. You’ll see that Terminal erases your drive. Then, Terminal will copy the installer file to your disk. This will take a few minutes. When the process is complete, the Terminal window will report 'Done.' You can quit Terminal and your bootable macOS Sierra installer USB drive is ready for use.
Also, you can follow the instructions from an Apple article on how to create bootable installer.
2. Plug in the bootable macOS Sierra installer USB drive to your Mac.
3. Restart your Mac while holding the Option key or Cmd+R. Make sure to keep it pressed!
4. When Mac restarts, you’ll see the macOS Startup Manager with a list of bootable devices that your Mac can start up from.
5. Use the arrow keys to choose your USB drive with macOS Sierra installer. Press Enter.
6. Select Disk Utility.
7. In the window, at the top of the left bar, select your Mac’s Main Drive (it looks like a MacintoshHD).
8. Select the Erase tab located next to the First Aid button at the top.
9. Near the center of the window, select the Format drop-down list and select Mac OS X Extended (Journaled) type.
10. Click Erase (Note: this will erase all your data from your main drive!) and give the drive some time to format.
11. When it’s done, close Disk Utility and select “Install macOS” from the menu.
12. Select your main drive and install the new macOS Sierra 10.12.
3. Restart your Mac while holding the Option key or Cmd+R. Make sure to keep it pressed!
4. When Mac restarts, you’ll see the macOS Startup Manager with a list of bootable devices that your Mac can start up from.
5. Use the arrow keys to choose your USB drive with macOS Sierra installer. Press Enter.
6. Select Disk Utility.
7. In the window, at the top of the left bar, select your Mac’s Main Drive (it looks like a MacintoshHD).
8. Select the Erase tab located next to the First Aid button at the top.
9. Near the center of the window, select the Format drop-down list and select Mac OS X Extended (Journaled) type.
10. Click Erase (Note: this will erase all your data from your main drive!) and give the drive some time to format.
11. When it’s done, close Disk Utility and select “Install macOS” from the menu.
12. Select your main drive and install the new macOS Sierra 10.12.
Follow these Sierra install instructions and enjoy your newly clean-installed macOS Sierra.
Clean Install on a Non-Startup Drive
This type of clean install doesn't require you to make a bootable copy of the macOS installer, since you can run the installer directly from your Mac’s startup drive. But you need to have another hard drive or volume that you can use for installing macOS.
So, this is the easiest way to clean install macOS 10.12. Simply use an extra drive or volume (it doesn’t have to necessarily be empty already, you just need to be fine with it being erased) and install Sierra there.
Step 1: Erase your non-startup drive
If your non-startup drive has any other Mac OS, erase it before installing Sierra. If the target drive only has personal data on it, or is already empty, you can skip the erase process.
To erase the non-startup drive, use a Mac's Drive Using Disk Utility (OS X El Capitan or later)
After the non-startup drive is erased, you can start the install process.
Step 2: Download the macOS Sierra Installer from the Mac App Store
When the macOS download completes, it will automatically launch the installer. Quit the macOS Sierra Installer app without performing the installation. You'll find the macOS Sierra Installer in the /Applications folder.
Step 3: Start the Installation of macOS Sierra on the Non-startup drive
- Launch the Installer from /Applications folder.
- Click Continue.
- Check the non-startup drive that you can install Sierra on (usually, the installer will display the default target for the installation of macOS Sierra as the startup drive (Macintosh HD). So, you should to click the Show All Disks button, and the installer will display a list of all attached volumes).
- Click the Install button.
- The macOS Sierra installer will display a progress bar. You'll be guided through the macOS Sierra setup process to create a user account, set up date and time, and other introductory stuff.
Enjoy your fresh, clean-installed macOS Sierra.