Monster Clean Out Mac OS
Step 2b: Get the install file for an older version of macOS. For older versions of macOS and Mac OS X it's a bit more difficult to get the install file: Apple doesn't offer downloads of outdated. Find your Startup disk (it should be named 'Machintosh HD' unless you renamed it) in the sidebar. Select the data disk under the startup disk. Click Edit in the Mac screen's upper left corner in the menu bar. Click Delete APFS Volume from the menu bar or click the Remove button in the disk utility bar. Caching data is essential for Macs that use wired internet connection. But, by caching for a long time, your Mac accumulates lots of files, which can affect its performance. So, it’s better to clean your Mac of them and help it run faster. Here’s how to clean junk files on Mac and remove user cache: Open Finder. Press Command+Shift+G. With Mac OS a lot of this stems from users having 32 Bit apps and not understanding that they are no longer supported. Clean installs are sort of the last resort when you have problems but can’t figure out where the issue is. Its a way to wipe the slate clean and start over. Apple makes a clean install of a current release mostly painless.
Moving to a new Mac? Before taking these steps, you can use Migration Assistant to move your files from the old Mac to your new Mac.
Create a backup
Make sure that you have a current backup of your important files. Learn how to back up your Mac.
Sign out of iTunes in macOS Mojave or earlier
If you're using macOS Mojave or earlier, open iTunes. From the menu bar at the top of the screen or iTunes window, choose Account > Authorizations > Deauthorize This Computer. Then enter your Apple ID and password and click Deauthorize.
Learn more about deauthorizing computers used with your iTunes account.
Sign out of iCloud
If you're using macOS Catalina or later, choose Apple menu > System Preferences, then click Apple ID. Select Overview in the sidebar, then click Sign Out.
If you're using macOS Mojave or earlier, choose Apple menu > System Preferences, click iCloud, then click Sign Out.
You will be asked whether to keep a copy of your iCloud data on this Mac. You can click Keep a Copy, because you're erasing your Mac later. Your iCloud data remains in iCloud and on any other devices that are signed in to iCloud with your Apple ID.
Sign out of iMessage
If you're using OS X Mountain Lion or later, open the Messages app, then choose Messages > Preferences from the menu bar. Click iMessage, then click Sign Out.
Reset NVRAM
Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. Release the keys after about 20 seconds. This clears user settings from memory and restores certain security features that might have been altered.
Learn more about resetting NVRAM or PRAM.
Optional: Unpair Bluetooth devices that you’re keeping
If your Mac is paired with a Bluetooth keyboard, mouse, trackpad, or other Bluetooth device that you plan to keep, you can unpair it. This optional step prevents accidental input when the Mac and device have separate owners but remain in Bluetooth range of each other.
If you're unpairing Bluetooth input devices from a desktop computer such as an iMac, Mac mini, or Mac Pro, you must plug in a USB keyboard and mouse to complete the remaining steps in this article.
To unpair a Bluetooth device, choose Apple menu > System Preferences, then click Bluetooth. Move your pointer over the device that you want to unpair, then click the remove (x) button next to the device name.
Erase your hard drive and reinstall macOS
The best way to restore your Mac to factory settings is to erase your hard drive and reinstall macOS.
Monster Clean Out Mac Os X
After macOS installation is complete, the Mac restarts to a setup assistant that asks you to choose a country or region. To leave the Mac in an out-of-box state, don't continue setup. Instead, press Command-Q to shut down the Mac. When the new owner turns on the Mac, the setup assistant guides them through the setup process.
Monster Clean Out Mac Os X
No matter the model or condition, we can turn your device into something good for you and good for the planet: Learn how to trade in or recycle your Mac with Apple Trade In.