Reinstall from macOS Recovery

Question: Q: Can't download/install apps from Mac App Store When I click 'Get' and 'Install App,' nothing happens after that, no prompt for the Apple ID password appears. I have downloaded apps before with no problem. After checking the App Store to verify the app is still available, delete the problem app from your Mac and reinstall it from the App Store for a clean approach. Contact the app developer. Visit the app developer's website and see if there are any notes about compatibility with your version of macOS or OS X or other apps or services you use.

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. Release the keys when you see an Apple logo, spinning globe or other startup screen.

When you install the Microsoft OneDrive sync app for Mac, a copy of your OneDrive is downloaded to your Mac and put in the OneDrive folder. This folder is kept in sync with OneDrive. If you add, change, or delete a file or folder on the OneDrive website, the file or folder is added, changed, or deleted in your OneDrive folder and vice versa. Installing new versions of macOS on a Mac should be a pretty simple exercise. The Mac tells you there's an update available via a pop up in Notification Centre - in some cases (depending on your. Install any app with ease. The Mac App Store revolutionises the way apps are installed on a computer — it happens in one step. Enter the same iTunes password you use to buy apps and music on your iPhone, iPad, Mac or iPod touch. People install tons of Apps on Android and thus find out that it is not a simple task to manage those files. In this article, I would like to show you how to install or uninstall Android Apps in batch on your computer.

Apr 03, 2018 The High Sierra installer suddenly appeared in the Applications folder, and was NOT directly requested through the App Store (that Mac user account does not have local access to the App Store app). The High Sierra installer downloaded because it was allowed by the settings in the App Store pref pane.

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 that's still available.

You may 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, that means you have started up from macOS Recovery. Mac ayres easy instrumental download.

2. Decide whether to erase (format) your disk

You probably don't need to erase your disk, unless you're selling, trading in or giving away your Mac, or you have an issue that requires you to erase it. If you need to erase it before installing macOS, select Disk Utility from the Utilities window, then click Continue. Find out more about when and how to erase your disk.

3. Install macOS

When you're ready to reinstall macOS, choose Reinstall macOS from the Utilities window. Then click Continue and follow the on-screen 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 can't see your disk or notifies you that it can't install macOS on your computer or volume, you may need to erase your disk first.
• If the installer is for a different version of macOS than expected, find out 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 the installation to finish without putting your Mac to sleep or closing its lid. During the installation process, your Mac may restart and display a progress bar on the screen several times, and the screen may be blank 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 the setup process. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete the setup process.

macOS Recovery exceptions

The version of macOS offered by macOS Recovery may 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 that's 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 may only offer the macOS that came with your Mac, or the closest version that's still available. You can upgrade to a later version afterwards.
• If your Mac has the Apple T2 Security Chip and you've never installed a macOS update, Option-Command-R installs the latest macOS that was installed on your Mac.
• If you've just had your Mac logic board replaced during a repair, macOS Recovery may only offer the latest macOS that is compatible with your Mac.

If you can't get macOS Recovery to offer the installer you want, you may 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 may be able to install an earlier macOS, such as macOS Mojave, High Sierra, Sierra, El Capitan or Yosemite.
• Or, create a bootable installer disk and then use that disk to install macOS on your Mac or another Mac.

Many users will see references to an application called MacKeeper on various web sites and via pop-ups on their browser. Not only is it expensive for what it purports to do (freeware applications that do the same or more are readily available), it can sometimes install itself without the user realising it, and it can be very tricky to get rid of.

MacKeeper has been described by various sources as highly invasive malware*that can de-stablize your operating system, adding that it is unethically marketed, with a history of making false advertising claims, by a company called Zeobit, and a rip-off.

(Please note that references to the original developers, Zeobit, also now refer to Kromtech Alliance Corp, who acquired MacKeeper and PCKeeper from ZeoBit LLC in early 2013.)

Most positive reviews of it have been found to have been paid for by Zeobit (developers of MacKeeper) in the form of ‘free upgrades’ etc. One such opinion is:

For more about ‘astruturfing’ (writing phoney product reviews for money) see here:

and http://www.bbc.co.uk/news/technology-24299742

Further opinion on it and how to uninstall MacKeeper malware can be read here:

Mac Cant Keep Apps Install Pc

MacKeeper have recently said that the uninstaller from here:

Mac Os X Won't Install

Apps For Mac

now works.

There are many forms of ‘Malware’ that can affect a computer system, of which ‘a virus’ is but one type, ‘trojans’ another. Using the strict definition of a computer virus, no viruses that can attack OS X have so far been detected 'in the wild', i.e. in anything other than laboratory conditions. The same is not true of other forms of malware, such as Trojans. Whilst it is a fairly safe bet that your Mac will NOT be infected by a virus, it may have other security-related problem, but more likely a technical problem unrelated to any malware threat.

Mac Cant Keep Apps Installer

Mac Cant Keep Apps Install Laptop

You may find this User Tip on Viruses, Trojan Detection and Removal, as well as general Internet Security and Privacy, useful: The User Tip seeks to offer guidance on the main security threats and how to avoid them.

More useful information can also be found here:

www.thesafemac.com/mmg

* The expression ‘malware’ is a general term used by computer professionals to mean a variety of forms of hostile, intrusive, or annoying software.