Why Is My Mac Requiring Me to Sign in Again

To consummate whatsoever of the steps beneath, you lot'll need the email address and password associated with your active and licensed Microsoft 365 subscription or your i-fourth dimension purchase of Office for Mac. This may be your Microsoft Account or the business relationship you received from your organization. Y'all will as well have already downloaded and installed the Office suite.

Can't activate Office afterwards installation.

Cheque to make sure your net is working on the Mac y'all're trying to install on. You can practise this by opening your internet browser and going to world wide web.microsoft.com. If the page loads, your internet connection is working.
Reset your credentials:
1. Open Spotlight by selecting the magnifying glass at the top right of your desktop.
2. Search for and open Keychain.
3. Type in Office so delete the data license file.
4. Download and run this script.

"No license found" error / Can't activate Outlook.

Are you using the correct Microsoft Account (MSA)? Sign out and sign in again with the account associated with your Microsoft 365 subscription. Y'all may need to choose "Sign in with another account" to keep.

Tip:Try searching all of your email accounts for a confirmation email from Microsoft. This might help you find the email accost that is your MSA.
Are yous trying to activate Outlook with an Role Domicile and Student 2016 license? The Role Abode & Student license does non come with Outlook. If you would like to use Outlook, yous can switch to a different Microsoft 365 home subscription. If you lot would similar to keep the license you have, nosotros recommend you elevate the Outlook app to Trash to delete it.
If yous take a Microsoft 365 work or school account, your license may non accept been gear up past your system ambassador. Contact your organization's tech back up for more help.
If you don't take a current subscription, y'all tin sign upward for a trial account

Can't sign in to activate.

Are you using the correct Microsoft Business relationship (MSA)? Sign out and sign in once more with the business relationship associated with your Microsoft 365 subscription. You may need to cull "Sign in with some other account" to go on.

Verify your Microsoft Account has a license:

Sign in to your Microsoft Account at Office.com/signin.

Of import:All Microsoft Accounts have access to Office Online for complimentary. Seeing the web apps on this folio doesn't necessarily mean that you accept a subscription.
Click the Install Role button on the page.
If you have an Office license, yous'll see it listed on the new folio. This is the correct account to sign in with.

Tip:Not seeing whatever Office licenses? Try searching all of your electronic mail accounts for a confirmation email from Microsoft. This might help you detect the electronic mail address that is your MSA.

Installation limit reached.

Have you seen this error?

"Installation limit reached
Your account <email accost> has been used to activate Role on the maximum number of computers immune. Visit your account page to manage your settings and then return here to retry activation."

To fix this result, please follow the steps in Installation limit reached error when activating Office for Mac.

Office keeps asking me to sign in / "Authentication Expired" error

If y'all see repeated prompts to grant access to the keychain when starting an Office for Mac app, Office may have been moved to a location other than the default /Applications binder. Other symptoms may be that you see Office for Mac repeatedly request you to sign into your account or you receive an "Authentication Expired" mistake.

In the case of any of the above, follow the steps in Role for Mac repeatedly requesting keychain access to reset your keychain permissions.

One-fourth dimension purchase of Office for Mac confirmed, but still can't activate

"Thanks for ownership Role. We've confirmed your purchase, just in order to actuate you will need to download a version of Office for Mac from this Link"

If you're trying to activate a one-time buy of Function for Mac and you get the above error message, this is because your PriviligedHelperTools folder is incorrectly not attainable to your user account.

Find out if your PriviligedHelperTools folder is not accessible:

Open up Finder, click Go (In the menu bar) > Reckoner.
Go to Macintosh HD > Library.
Find the PriviligedHelperTools folder. If there is a red dot/end icon side by side to the name, information technology is not accessible. Fix it using the instructions in the Fix permissions for the PriviligedHelperTools folder beneath.

Annotation:If your PriviligedHelperTools folder is accessible but empty, uninstall and then reinstall Function for Mac. And so actuate Office again after confirming that the PriviligedHelperTools binder now has files in it.

If those steps don't work, try this:

Open Finder, click Get (In the menu bar) > Computer.
Go to Macintosh Hard disk drive > Library.
Find the PriviligedHelperTools binder. If in that location is a ruddy dot/stop icon adjacent to the name, it is not accessible. Fix information technology using the instructions in the Set permissions for the PriviligedHelperTools folder beneath.

Note:If your PriviligedHelperTools binder is accessible but empty, uninstall and so reinstall Office for Mac. Then activate Office again after confirming that the PriviligedHelperTools folder now has files in it.
Correct-click the file, and click Go info.
Right-click the lock symbol in the Sharing and Permission section.
Click the unlock symbol and enter your admin password.
Change the Everyone'southward privilege to Read and Write.

Gear up permissions for the PriviligedHelperTools folder:

In Spotlight Search(the magnifying drinking glass on your desktop), search for and launch Terminal.
Type "Cd /Library" and press Enter.
Type "sudo -southward" and printing Enter.
Blazon your Mac local account password and printing Enter. You will need ambassador privileges for this.

Note:As y'all type, Last will not display the characters.
Blazon "chmod 755 ./PrivilegedHelperTools" and press Enter.
Quit out of Terminal and out of the Office apps. Relaunch Office and complete activation.

Error lawmaking 0xD000000C.

Have you seen this error?

"The system requires that yous sign on to a valid business relationship. The fault code is: 0xD000000C."

To address this issue, see Error 0xD000000C when activating Role for Mac.

Fault code 0x8A010101.

If you're trying to activate Office for Mac and accept received fault code 0x8A010101, y'all may have an invalid product key.

See Error 0x8A010101 when activating Office for Mac.

Error code 0xD0001043.

Accept you seen this error?

"An unknown error has occurred. The error code is 0xD0001043"

This is a server consequence that occurs when trying to actuate Microsoft 365 for Mac for Mac. Try restarting your Mac and activate once more. If you're still seeing this error, endeavor this:

Run the Office for Mac License Removal Tool
Uninstall Part for Mac and then re-install Office from Function.com/signin.
Actuate again.

Error code 0xD000001c.

If you're trying to activate Office for Mac and have received mistake code 0xD000001c, this is considering your Mac'south proper noun contains invalid characters when being sent to our server. To fix this issue, update your Mac'due south name to remove the invalid characters:

In the pinnacle menu bar, select the Apple icon > Arrangement Preferences > Sharing (third row.)
In the Computer Name text box, update your Mac's name then shut the window.
Restart your Mac and then activate Part.

"You lot need to activate Office for Mac within X days" later activating already.

Microsoft is enlightened of and currently working on this issue.

If y'all've activated Office for Mac 2016 but are still seeing a message that says "You lot need to activate Office for Mac within Ten days," please endeavor these steps to resolve your result:

Run the License Removal Tool
In Spotlight Search (the magnifying glass) on your Mac, search for and open up Keychain Access.
In Keychain Access, delete the following files:

Note:You volition need local admin privileges to make changes to your Keychain Access.
- Microsoft Role Identities Cache 3
- Microsoft Office Identities Settings 3
- Microsoft Office Ticket Cache
Restart your Mac and open whatsoever Microsoft Office app to reactivate.

Activated only still prompted to activate.

You lot've activated but you're all the same being asked to activate, or you continue seeing messages for "Activate Office to Create and Edit" when you lot've already activated:

Quit the app. For instance, if you're using Word, you'll go to the upper left corner of your screen and click Give-and-take > Quit Word.
Restart any Office app and the bulletin should be gone.
If this is a abiding result, reset your credentials:
- Open Spotlight past selecting the magnifying drinking glass at the top right of your desktop.
- Search for and open Keychain.
- Type in Office and and then delete the data license file.
- Run the license removal tool

Activated with the incorrect license

If you own multiple licenses and have installed using the incorrect one, or yous had a quondam install of Role for Mac and and so purchase Microsoft 365, you lot might need to remove licenses fastened to your suite of Part and reactivate to ensure you lot're getting all the benefits of Microsoft 365.

See Remove Office license files on a Mac for directions on how to check which license you lot're using and how to reactivate.

Unknown error" or "clock fault" when you lot activate Outlook 2016 for Mac

When you actuate Outlook 2016 for Mac, you may receive one of the following error letters:

An unknown fault has occurred, the error code is: -805240834
An unknown fault has occurred, the fault code is: -805302259
An unknown error has occurred, the error code is: -8336C3H9
An unknown mistake has occurred, the fault code is: 0
Clock error: The organization clock is inaccurate, please set up it to electric current local time.

To resolve this issue automatically, download and run this script.

Of import:Scripts are not supported nether any Microsoft standard support program or service. Scripts are provided Equally IS without warranty of whatever kind. Microsoft disclaims all implied warranties including, without limitation, any implied warranties of merchantability or of fitness for a particular purpose. The unabridged chance arising out of the use or performance of the scripts remains with you. In no issue shall Microsoft, its authors, or anyone else involved in the cosmos, production, or delivery of the scripts exist liable for whatever amercement whatsoever (including, without limitation, amercement for loss of concern profits, business interruption, loss of business organization information, or other pecuniary loss) arising out of the apply of or inability to use the scripts, even if Microsoft has been advised of the possibility of such amercement.

To resolve this issue without running the script, follow these steps:

Go out all open Office applications, including Outlook and OneNote.
On the carte bar, click Go > Utilities, and then double-click Terminal.
Type the following text, and then press Enter in the Last Window: killall "Office365ServiceV2"

Note:If you receive the message "No matching processes belonging to yous were plant," the Office365ServiceV2 service is non running. Go to the adjacent step.
In Terminal, type the post-obit text, and and so press Enter: cd ~/Library/Group\ Containers/UBF8T346G9.Office
In Terminal, type the following text, and so printing Enter: ls -a | perl -n -east 'impress if grand/^[e|c]\due west/' | xargs rm
Open Outlook or OneNote, and verify that you can sign in and activate successfully.

Tin can't download the Role for Mac installer.

Bank check to brand sure your net is working on the Mac you're trying to install on. Pause any other downloads you may accept active.
If you lot've started a download and it'due south stuck, delete the download file past dragging it to Trash. Empty the Trash. At present, beginning the download again past going to Function.com/signin.

Note:In order to actuate Office for Mac, yous will need a valid and licensed Microsoft 365 account or a Microsoft Account that is associated with a one-time purchase. If you don't, yous won't be able to create or edit files, just read them.
Still not working? Open Safari and get to Preferences > Security tab and brand certain Enable Javascript is selected. And so go to the Privacy tab > Manage Website Data > Remove all. Start the download once again using Safari.

Can't discover the installer or Office apps after downloading

If you lot're looking for the Function Installer:

Depending on what browser you used to download the installer, it may save to dissimilar folders on your Mac. We recommend you use Safari for the all-time experience.

Look for the file in your Downloads folder, typically side by side to the Trash.
If you don't come across a Downloads folder, open Safari and go to View > Show Downloads.

Annotation:If y'all've changed your downloads location and don't remember where, you tin bank check by going to Safari > Preferences > General.

If you're looking for the Office apps later on installing:

Afterward you've installed the Function suite, you can find them past opening the Launchpad Shows the Launchpad button in the Dock .

Or you can open Finder > Applications > scroll downwards to "Microsoft."

Open Finder > Applications > Search for "Microsoft"

"An error has occurred. We can't movement on to the adjacent step. Please try again afterward."

Some customers may get this error when clicking install button from their My Account page:

"An mistake has occurred. We can't movement on to the next step. Please effort once again later."

Quit out of your browser and then try again.

Installer.pkg file downloaded merely won't launch.

Wait for the download to exist consummate. It may take a while, and may start and stop. The last file size should be around 1.5 gb.
Move the Microsoft Part installer .pkg file from the Downloads folder to the desktop, and so double-click to launch.
If it's withal not working, delete the installer.pkg file and empty the Trash. At present, redownload using the Safari browser at Office.com/signin.

Unidentified developer mistake

Accept you seen this error?

"Microsoft Office can't exist opened because it is from an unidentified developer."

If y'all haven't already, upgrade your device to MacOS Sierra 10.12.
Click OK and wait 10 seconds. Motion the download file to your desktop and try again.
Agree Control and click the file on your desktop. Click Open.

Error message "Install Failed" when trying to install.

The download is corrupted. Drag the installer file to Trash to delete it. Empty the Trash.
Start the download once again in Safari by going to Office.com/signin.

Unsupported operating organisation error/Bought wrong version

If you lot bought a one-time purchase of Role 2016 for PC instead of for Mac (or vice versa), you'll get an "Unsupported operating system" fault when installing. If this is the case, you'll demand to contact Microsoft support.

Note:This event doesn't apply to Microsoft 365 subscribers.

See Unsupported operating arrangement fault while installing Office to learn more.

Installer stuck at "Verifying."

The error that says the Microsoft Office installer.pkg can't be opened because it is from an unidentified developer, has been fixed in an update past Apple.

Click OK. Wait 10 seconds and try again.
Update to macOS Sierra (10.12).
Restart your computer and install Office for Mac again.

Download stopping at the aforementioned size, every time.

Cheque to make certain your internet is working on the Mac you're trying to install on. You can practise this by opening your cyberspace browser and go to www.microsoft.com. If the page loads, you're skillful to go.
Click and drag the installer file to Trash to delete information technology.
Use the Safari browser and try to download the installer over again.

System requirements not met.

For the most up-to-date Office for Mac organization requirements information, see System requirements for Office.

Besides see macOS requirements for Microsoft 365 for Mac or Function 2019 for Mac new updates.

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Source: https://support.microsoft.com/en-us/office/what-to-try-if-you-can-t-install-or-activate-office-for-mac-5efba2b4-b1e6-4e5f-bf3c-6ab945d03dea