Fixing Microsoft Office Sign-In After the Account Migration

If you use the Microsoft Authenticator app on your phone, open it and remove the entry for your @students.sbts.edu account. (If you don't use Microsoft Authenticator, skip this step.)

Because macOS adds extra security around outside tools, it helps to watch the official walkthrough first. It shows the whole process of downloading and running the SBTS migration tool, including how to get past the macOS security prompt.

▶ Watch the macOS walkthrough video

This tool removes the configuration left over from your previous account. Download it using the official SBTS link:

⬇ Download SBTS-Microsoft365-MigrationFix.ZIP

The file will land in your Downloads folder unless your browser is set to save elsewhere.

1. Open your Downloads folder (in Finder, or click the download in your browser).
2. Double-click SBTS-Microsoft365-MigrationFix.zip to unzip it.
3. This creates a folder containing two files: a ReadMe.txt and a Fix-OfficeSignIn.command file.

1. Double-click Fix-OfficeSignIn.command to run it.
2. macOS will block it the first time and show a message saying the file can't be opened because it's from an unidentified developer. This is expected.
3. Open the Apple menu → System Settings → Privacy & Security.
4. Scroll down to the Security section. You'll see a line about Fix-OfficeSignIn.command being blocked, with an Open Anyway button. Click Open Anyway.
5. Confirm with your Mac password or Touch ID if asked, then let the tool finish running.

Click the Apple menu → Restart… and confirm. Let your Mac boot all the way back up before continuing.

1. Open a web browser and go to https://office-reset.com/.
2. Download the tool from that website and open it, following the on-screen instructions.
3. When you run it, check all of the boxes so every leftover Office setting is cleared.
4. If the tool asks you to restart afterward, go ahead and restart.

Open a Microsoft Office application (such as Word) and sign in using your updated @students.sbts.edu Microsoft 365 credentials.

The quickest way: press ⌘ Cmd + Space to open Spotlight, type Keychain Access, and press Return.

Need a visual? Walk through opening Keychain Access with Spotlight →

Use the search box in the top-right of Keychain Access. For each term below, type it in, select the matching results, then right-click and choose Delete (or press Delete).

Need a visual? Walk through finding and deleting Keychain entries →

• ADAL Select all results and delete them.
• MSAL Select all results and delete them.
• Exchange Delete all results related to your @students.sbts.edu student email.
• Office Delete items labeled “Microsoft Office Identities Settings” or “Microsoft Office Identities Cache.”
• Microsoft Delete items that say “Microsoft Corporation” or look like com.microsoft.oneauth.

Click the Apple menu → Restart… and confirm. Let it boot all the way back up.

Open a Microsoft Office application and sign in with your updated @students.sbts.edu Microsoft 365 credentials.

Why: iCloud keeps its own synced copy of your Keychain. Signing out first makes sure resetting the local Keychain later won't fight with the iCloud version.

1. Click the Apple menu in the top-left corner, then choose System Settings. On older Macs this is “System Preferences.”
2. Click your name at the very top of the left-hand sidebar (your Apple ID).
3. Scroll to the bottom of the Apple ID page and click Sign Out.
4. If asked, type your Apple ID password to turn off Find My Mac, then continue.
5. When the data-types list (Keychain, Safari, Contacts, etc.) appears, leave the boxes unchecked to remove the local copies. Your data stays safe in iCloud and returns when you sign in again.
6. Wait for the sign-out to finish completely before moving on.

Why: Email and calendar accounts (Google, Microsoft Exchange, your school account) also store passwords in the Keychain. Temporarily removing them prevents conflicting entries while you work.

1. Still in System Settings, scroll the left sidebar and click Internet Accounts.
2. You'll see every connected account — Google, Microsoft Exchange, Yahoo, your school/work email, etc.
3. Note down which accounts are listed so you can add them back later.
4. Click an account, then click Delete Account (or turn off its services / Sign Out). Confirm if asked.
5. Repeat for each account until none remain.

Why: Chrome can sync with your system Keychain and re-create conflicting password entries while you're resetting things. Removing it for now keeps the process clean — your bookmarks and passwords return from your Google account when you reinstall.

1. If Chrome is open, quit it: with Chrome in front, press ⌘ Cmd + Q.
2. Open a Finder window (the blue smiley-face icon in your Dock).
3. In the Finder sidebar, click Applications.
4. Find Google Chrome, then drag it to the Trash — or right-click and choose Move to Trash.
5. Enter your Mac password if asked.
6. Right-click the Trash and choose Empty Trash.

Why: This creates a brand-new, empty Keychain and safely sets aside the old one — clearing every stale Microsoft login at once.

1. Open Keychain Access: press ⌘ Cmd + Space, type Keychain Access, and press Return.
2. In the menu bar at the very top of the screen, click Keychain Access, then Settings. On older Macs this is “Preferences.”
3. Click the Reset Default Keychains button.
4. Type your normal Mac login password (the one you use to unlock your Mac) and confirm.
5. Close Keychain Access.

Why: A fresh install picks up the new, clean Keychain instead of the old one, so Office can store its sign-in without conflict.

Remove the old Office apps

1. Make sure every Office app is closed (Word, Excel, PowerPoint, Outlook, OneNote). If any are open, click into each and press ⌘ Cmd + Q.
2. Open Finder → Applications.
3. Drag each Microsoft app — Word, Excel, PowerPoint, Outlook, and OneNote — to the Trash.
4. Right-click the Trash and choose Empty Trash.

Download and reinstall

1. Go to https://portal.office.com. (It may redirect to microsoft365.com — that's normal.)
2. Sign in with your @students.sbts.edu Microsoft 365 account and updated password.
3. Click Install apps (or Install Office), usually near the top-right.
4. When the installer finishes downloading, open it (it ends in .pkg) and follow the prompts. Enter your Mac password if asked.
5. Let the install finish, then move on to the final step.

Why: A full restart clears lingering background processes, and signing your accounts back in rebuilds them cleanly against the new Keychain.

1. Restart your Mac: Apple menu () → Restart… and confirm. Wait for it to fully boot.
2. Sign back into iCloud: System Settings → Sign in at the top of the sidebar → enter your Apple ID and password.
3. Re-add your internet accounts: System Settings → Internet Accounts → Add Account, restoring each one you removed earlier.
4. Reinstall Chrome (optional): go to google.com/chrome and sign in to bring back your bookmarks and passwords.
5. Open Microsoft Word and sign in with your @students.sbts.edu account. It should now sign in smoothly.