Reinstall from macOS Recovery
macOS Recovery makes it easy to reinstall the Mac operating system, even if you need to erase your startup disk first. All you need is a connection to the Internet. If a wireless network is available, you can choose it from the Wi-Fi menu , which is also available in macOS Recovery.
Clean your Mac of old clutter. Clear up your recycle bin, temporary files and folders, broken permissions and more. Remove installed programs with the click of a button. Movavi Mac Cleaner. Movavi Mac Cleaner is an effective tool for OS X systems that will help you clean your MacBook Air or Pro, iMac, Mac mini or any other Apple computer. Unnecessary files left over from different applications, even after uninstalling, can take up disk space and slow your computer down. It will even clean up the junk you didn’t know about and give your computer a speed boost. How to clean up system storage on Mac with CleanMyMac X: Download CleanMyMac X for free here. Run the app and go to System Junk. Press Clean to get rid of all junk. Now your Mac looks much better! Your Mac doesn't need cleaning. See The myth of the dirty Mac. Also, regarding one of the apps you mentioned, see Beware MacKeeper. (Note that my pages contain links to other pages that promote my services, and this should not be taken as an endorsement of my services by Apple.).
1. Start up from macOS Recovery
To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following sets of keys on your keyboard. Release the keys when you see an Apple logo, spinning globe, or other startup screen.
Command (⌘)-R
Reinstall the latest macOS that was installed on your Mac (recommended).
Option-⌘-R
Upgrade to the latest macOS that is compatible with your Mac.
Shift-Option-⌘-R
Reinstall the macOS that came with your Mac, or the closest version still available.
You might be prompted to enter a password, such as a firmware password or the password of a user who is an administrator of this Mac. Enter the requested password to continue.
When you see the utilities window, you have started up from macOS Recovery.
2. Decide whether to erase (format) your disk
You probably don't need to erase, unless you're selling, trading in, or giving away your Mac, or you have an issue that requires you to erase. If you need to erase before installing macOS, select Disk Utility from the Utilities window, then click Continue. Learn more about when and how to erase.
3. Install macOS
When you're ready to reinstall macOS, choose Reinstall macOS from the Utilities window. Then click Continue and follow the onscreen instructions. You will be asked to choose a disk on which to install.
- If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
- If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
- If the installer is for a different version of macOS than you expected, learn about macOS Recovery exceptions.
- If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.
Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.
If your Mac restarts to a setup assistant, but you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.
macOS Recovery exceptions
The version of macOS offered by macOS Recovery might vary in some cases:
- If macOS Sierra 10.12.4 or later has never been installed on this Mac, Option-Command-R installs the macOS that came with your Mac, or the closest version still available. And Shift-Option-Command-R isn't available.
- If you erased your entire disk instead of just the startup volume on that disk, macOS Recovery might offer only the macOS that came with your Mac, or the closest version still available. You can upgrade to a later version afterward.
- If your Mac has the Apple T2 Security Chip and you never installed a macOS update, Option-Command-R installs the latest macOS that was installed on your Mac.
- If you just had your Mac logic board replaced during a repair, macOS Recovery might offer only the latest macOS that is compatible with your Mac.
If you can't get macOS Recovery to offer the installer you want, you might be able to use one of the other ways to install macOS.
Other ways to install macOS
- You can also install macOS from the App Store or Software Update preferences. If you can't install macOS Catalina, you might be able to install an earlier macOS, such as macOS Mojave, High Sierra, Sierra, El Capitan, or Yosemite.
- Or create a bootable installer disk, then use that disk to install macOS on your Mac or another Mac.
You can read on this post – Top 5 Mac cleaner reviews – to find out what is the best Mac cleaner for your Macbook, iMac or Mac mini to run more smoothly.
Mac Tips & Issue Fixes
Mac Related Tips
Mac Problems & Fixes
Mac Clean Tips
In fact, even Apple Macs need regular clean up like any other Windows computers. To clean up Mac manually is a laborious task, and it is not nearly enough. That’s how some professional Mac cleaner software comes. An old Mac can store gigabytes of junk files and which can not only take up space but also slows your Mac.
In this article, we have rounded up 5 of the best Mac cleaner software with their reviews and screenshots for you to speed up your Mac by cleaning up all unnecessary junk files on your device. Please check out and find a suitable one for your Mac.
1. Best Mac Cleaner – MacClean 3
Price: $19.99
Mac store games. MacClean offers you “60-Days Money Back Guarantee”, you can ask a refund if you find it doesn’t work well. Get It Now
MacClean is the best Mac cleaner for all Mac desktops and laptops. It is mainly for Mac users who want to clean up and free up Mac hard drive with no effort.
Main Features of MacClean
- It is fully capable of detecting and removing all types of junk files – Internet Junk, User Junk, System Junk, Development Junk, and Application Junk from Mac.
- It wipes out malicious cookies and malware from Mac to keep your Mac safe.
- It provides you with 10 useful tools like Duplicates Finder, Old & Large Files Finder, File Eraser, App Uninstaller, and Extension Manager, etc.
- It works all Macs including MacBook, MacBook Pro, MacBook Air, iMac, Mac mini, Mac Pro, etc.
Related Reading: Download MacClean Now >
2. MacPaw CleanMyMac 3
Price: $39.95
CleanMyMac 3 as its name expresses, is an easy to manage Mac cleaning software that made to clean and maintain your Mac. There is a free trial but you need to buy it for $39.95 (License for 1 Mac).
Main Features of CleanMyMac 3
- It helps clean the junk files from your Mac like user cache files, user log files, system log files, broken preferences, iOS software updates, etc.
- It finds out and removes old files from Mac to free up space.
- It manages to delete entire applications, including all the extra files.
- It empties the trash can on Mac and makes it unrecoverable.
Mac Cleaning Software – CleanMyMac 3
Also Read: 11 Ways to Make Your Mac Faster >
3. Mac Cleaning Software – Smart Mac Care
Price: $49.95
Smart Mac Care is an all-in-one tool to keep your Mac healthy and secure by removing malware infections, unwanted junk files and privacy traces.
Main Features of Smart Mac Care
- Malware Scan: It helps you detect and remove malware infections provide security to your system, eliminating unwanted system crashes and abnormal functioning.
- Junk Scan: It can smartly detect cache files, log files, trash etc. that are no longer in use and delete them in few clicks.
- Privacy Scan module scans all the browsers installed on your Mac for Internet history, cookies and application cache.
- It includes some tools like Uninstaller, Duplicate Finder, Failed Downloads and Login Items etc. All of them can help boost system performance and recover considerable hard disk space.
4. Mac Cleaning Software – Detox My Mac
Price: $24.95
Detox My Mac is basically the Mac software cleaner. It is designed to clean up junk stored in the storage space on the Mac and makes the memory space free. There is a free trial of Detox My Mac which allows you to scan and remove logs and trashes like user logs, trash bin, etc. And you need to unlock the full version for $24.95 for more functions.
System Clean For Mac Os
Main Features of Detox My Mac
- It’s quite simple and easy to use.
- It helps remove only those unused files and documents that clutter your Mac, letting you with a lot of free memory on your Mac.
- It removes unused language files for applications and systems helping free up more disk space.
- It manages to delete unused history files for browsers and applications.
Mac Cleaning Software – Detox My Mac
5. Mac Cleaning Software – AppZapper
Price: $12.95
Removing applications from your Mac is an easy job, however, the leftovers like behind folders and preference files still take hard drive space and generally clutter your system. AppZapper allows you to uninstall application as well as the app left – just drag and drop.
Main Features of AppZapper
- It is very easy to use, you can uninstall any app by dragging the app onto AppZapper.
- It finds all the extra files left on your Mac and allows you to remove them in a single click.
- It remembers which apps you want to keep safe, and the log tracks all the files you’ve zapped.
You May Like: How to Make Mac Faster in Three Methods >
The Bottom Line
Mac Clean System Files
If your Mac computer is getting sluggish, that means its time to clean out it with some Mac cleaner. You can choose one from the above mentioned tools. If you have any good ideas about the best Mac cleaning software, please share it with us in the comment section.
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