How to uninstall macOS Sierra. Since the launch of macOS Sierra back in September 2016, Apple received a lot of bad reviews from its users. The operating system provides you with a wide range of new useful features (for instance, the integration of Siri, the Optimize Storage utility, etc.) but has many problems under the hood. Fortunately, there are heaps of uninstallers that you can use to clean your Mac from these irritating apps with remaining. Here are the top 5 Mac uninstallers for macOS 10.13 High Sierra. #1 AweCleaner for Mac. AweCleaner for Mac offers best Mac uninstaller for macOS High Sierra (Download it here ). It allows Mac users to easily.
For a MacBook that old (Powerbooks dropped off the market somewhere around 2005), you will likely need to use the Snow Leopard DVD that shipped with the Mac.
Drag the selected program you want to uninstall to the “Trash” folder; Open “Trash” folder and select “Empty” How to Uninstall Apps On Mac OS Sierra: Open “Launchpad” Hold down an app’s icon until they start to jiggle; Click on the delete button; To uninstall the other apps, drag the apps into the “Trash” folder.
You can try Internet Recovery, but it only works on 2012 and later, or 2010, 2011 models that you installed the firmware update to use Internet Recovery.
Download Mac Os Sierra
On restart, hold down cmd-option-shift-R. If your Mac supports it, you will see a spinning Globe instead of an Apple. It will boot from Apple's servers and will install the OS that shipped on that Mac. However, it had Snow Leopard at best, so I think it will install Lion.
Mac App Store High Sierra
You will need to erase the drive and reinstall OS X. There is no way to go backwards without erasing the drive. Did you make a backup before upgrading? If so, just boot into Recovery and Restore from a Time Machine backup.
Here are Apple's instructions: macOS Sierra: Revert to a previous macOS version
Dec 17, 2017 4:03 PM
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.
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. Calca mac app crack. 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.
App video editing mac. 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
Mac Os High Sierra Problems
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.