If you don't have a current subscription, you can sign up for a trial account Contact your organization's tech support for more help. If you have a Microsoft 365 work or school account, your license may not have been set up by your system administrator. If you would like to keep the license you have, we recommend you drag the Outlook app to Trash to delete it. If you would like to use Outlook, you can switch to a different Microsoft 365 home subscription. This might help you find the email address that is your MSA.Īre you trying to activate Outlook with an Office Home and Student 2016 license? The Office Home & Student license does not come with Outlook. Tip: Try searching all of your email accounts for a confirmation email from Microsoft. You may need to choose "Sign in with another account" to proceed. "No license found" error / Can't activate Outlook.Īre you using the correct Microsoft Account (MSA)? Sign out and sign in again with the account associated with your Microsoft 365 subscription. Type in Office and then delete the data license file. Open Spotlight by selecting the magnifying glass at the top right of your desktop. You can do this by opening your internet browser and going to If the page loads, your internet connection is working. Restore previous purchase for Office for Mac Can't activate Office after installation.Ĭheck to make sure your internet is working on the Mac you're trying to install on. Unknown error" or "clock error" when you activate Outlook 2016 for Mac Just be aware though that a bootable dvd takes a lot longer to boot up than a bootable usb."You need to activate Office for Mac within X days" after activating. and then boot to startup manager with option key to select the dvd. To do this copy and paste these into terminal to make the bootable iso file (assuming you have the Sierra installer in your Applications folder): hdiutil attach /Applications/Install\ macOS\ Sierra.app/Contents/SharedSupport/InstallESD.dmg -noverify -nobrowse -mountpoint /Volumes/install_app hdiutil create -o /tmp/Sierra.cdr -size 7.85g -layout SPUD -fs HFS+J hdiutil attach /tmp/ -noverify -nobrowse -mountpoint /Volumes/install_build asr restore -source /Volumes/install_app/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -erase rm /Volumes/OS\ X\ Base\ System/System/Installation/Packages cp -rp /Volumes/install_app/Packages /Volumes/OS\ X\ Base\ System/System/Installation/ cp -rp /Volumes/install_app/BaseSystem.chunklist /Volumes/OS\ X\ Base\ System/BaseSystem.chunklist cp -rp /Volumes/install_app/BaseSystem.dmg /Volumes/OS\ X\ Base\ System/BaseSystem.dmg hdiutil detach /Volumes/install_app hdiutil detach /Volumes/OS\ X\ Base\ System/ hdiutil convert /tmp/ -format UDTO -o /tmp/Sierra.iso mv /tmp/ ~/Desktop/Sierra.iso A bootable iso file called Sierra.iso will then appear on your desktop and you can use this to burn it to a dual layer dvd: sudo drutil burn /Users/YOURNAME/Desktop/Sierra.iso where you replace "YOURNAME" with the username for the account you are logged into at the time. At least you can boot and get Sierra installed to an otherwise unbootable drive (or reinstalled over an earlier installation nondestructively). As a workaround, do an actual installation to your flash drive, then just copy the new installer to that drive's Applications folder. The createinstallmedia command will fail with the new Sierra installer. To learn how to perform a clean installation of macOS using the bootable USB drive method, click one of the following links: macOS Catalina, macOS Mojave, macOS Sierra. You can find the latest official download links below for the last six versions of Apple's Mac operating system, all of which contain a new certificate that has not expired: Doing so will also ensure that you have all of the macOS updates that have been released since you made the original installer, meaning you won't have to update macOS immediately after the initial installation is complete. To fix the damaged installer, you should just download the installer again. If you tried to use a macOS installer in the last few days or weeks, you may have been met with an error message saying something like " This copy of the Install macOS Mojave.app application is damaged, and can’t be used to install macOS."Īs Apple explains in a newly published support document, the likely reason for the "damaged" error message is an expired certificate. If you tried to run your installer recently and unexpectedly received an error that it is damaged and can't be used, then don't worry – keep reading for a simple and straightforward way to fix it. Creating a macOS installer on a bootable USB drive provides a convenient way of installing a fresh copy of macOS on multiple Macs, and also allows you to perform a clean installation quickly and easily.
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