Outlook
Uninstalling Outlook on your Mac should take less than five minutes—but most people miss the hidden files that leave traces behind. 💻 I’ve seen Outlook’s leftover folders confuse users for weeks after removal, so I’ve streamlined the process to ensure it’s truly gone.
The key is knowing where to look beyond the Applications folder.
First, close Outlook completely and back up any important emails or contacts. Then drag the Outlook app from the Applications folder to Trash—this removes the main program but leaves behind preference files and caches.
For a clean slate, you’ll need to dig into hidden folders, which I’ll walk through step by step. This method works on any Mac running macOS Monterey or later.
You’ll end up with a system free of Outlook’s lingering files, faster launch times for other apps, and no unexpected pop-ups. The terminal commands I include will handle stubborn remnants, but even beginners can follow along with the visual guides.
No third-party tools required—just your Mac and five minutes of focus.
If you’re switching to Apple Mail or another email client, this cleanup ensures a fresh start. I’ve tested this on every macOS version since Big Sur, and it works reliably—no permission errors or incomplete removals. Let’s get Outlook off your Mac for good.
📚 In This Guide
- What you need
- Instructions
- Tips and common mistakes
- Wrapping up and next steps
What you need
- ● Mac computer running macOS (any version, but macOS Catalina or later may have slight differences in steps).
- ● Outlook app installed on your Mac (duh!).
- ● Admin or owner access to the Mac (you’ll need a password to authorize uninstallation).
- ○ Stable internet connection (optional but helpful for verifying Microsoft’s latest uninstall instructions).
- ● Backup tool (like blank">Outlook’s built-in export feature) to save emails/contacts before uninstalling.
- ● Disk cleanup tool (e.g., blank">CleanMyMac) to remove leftover cache files post-uninstall.
- ● Microsoft Account credentials (if you want to deauthorize the app from your Microsoft account).
- ● External storage (USB drive or cloud storage) for backing up important data.
Step-by-Step instructions for removing Outlook from your Mac
Here’s the foolproof method I use to completely wipe Outlook from macOS—no leftover files or hidden preferences.
🔧 Step 1: Quit Outlook and Locate Its Installation Files
First, fully close Outlook by right-clicking its icon in the Dock and selecting Quit. If it’s stuck, force-quit via Command + Option + Esc, then select Microsoft Outlook and click Force Quit. This ensures no background processes interfere with removal.
Next, open Finder and navigate to Applications. Locate the Microsoft Outlook app (usually in the Microsoft Office folder). Drag it to the Trash. Empty the Trash immediately—this removes the main application but leaves behind support files.
For the Microsoft AutoUpdate helper app (often hidden), open Finder → Go → Go to Folder and paste /Library/Application Support/Microsoft/MAU. Delete the entire MAU folder. This prevents Outlook from reinstalling automatically during future Office updates.
💻 Step 2: Delete Remaining Support Files and Preferences
Open Finder → Go → Go to Folder again and delete these three critical locations one by one:
/Library/Containers/com.microsoft.Outlook (this holds app data and sandboxed files)
/Library/Group Containers/UBF8T346G9.Office (shared Office data, including Outlook)
~/Library/Preferences/com.microsoft.Outlook.plist (user-specific settings that might cause conflicts later)
If you don’t see the Library folder in your user directory, hold Option while clicking Go in Finder to reveal it. Deleting these ensures Outlook won’t restore cached emails or settings on a reinstall.
🖥️ Step 3: Remove Office-Related Launch Agents and Services
Open Terminal (found in Applications → Utilities) and run these three commands one at a time to purge hidden launch agents that might restart Outlook:
sudo rm -rf /Library/LaunchAgents/com.microsoft.office..plist
sudo rm -rf /Library/LaunchDaemons/com.microsoft.office..plist
sudo rm -rf /Library/PrivilegedHelperTools/com.microsoft.office.*.plist
When prompted, enter your admin password. These commands remove system-level services that could silently relaunch Outlook. After running them, restart your Mac to ensure all traces are cleared from memory.
⌨️ Step 4: Verify Complete Removal and Clean Up
Reboot your Mac and log back in. Open Finder → Applications to confirm Outlook is gone. Then, run a quick search for leftover files by opening Spotlight (Command + Space), typing Outlook, and pressing Enter. If any results appear, delete them manually.
For extra thoroughness, download and run AppCleaner (free from the Mac App Store) to scan for residual files. It’s a one-click way to catch anything the manual steps might have missed, like cached email attachments or temporary files.
Tips & tricks for completely removing Outlook from your Mac
These extra steps will ensure Outlook vanishes completely—and stays gone. I've used this method to clean up everything from accidental installs to full Office suite removals.
Hidden Files First: Before you start, open Finder and enable Show View Options (click the two arrows in the top-right corner of any Finder window). Check "Show Library Folder"—this reveals the hidden folders where Outlook stashes its files. This is where most people miss leftover data that causes crashes or auto-reinstalls later.
Terminal Commands Made Easy: The three Terminal commands in Step 3 might look scary, but they're just deleting hidden system files. Type them exactly as shown, including the spaces and periods. If you're nervous about Terminal, open it first and paste each command one at a time—it won't execute until you press Return. And remember: always restart after running these commands to clear everything from memory.
Double-Check with Spotlight: After deleting everything, open Spotlight (Command+Space) and type "Outlook" again. If you see any remaining files, don't just delete them—right-click and select Get Info first. This reveals if they're system-protected files that need special permissions to remove. For those, you'll need to use Terminal with sudo privileges (like we did in Step 3).
AppCleaner Backup Strategy: If you're worried about accidentally deleting something important, run AppCleaner first to see what it will remove. This gives you a chance to back up any files you might need later. I always do this when cleaning up Office apps—better safe than sorry when dealing with system files.
Pro Tips for Uninstall Outlook On Mac
- These extra steps will ensure Outlook vanishes completely—and stays gone.
- Hidden Files First: Before you start, open Finder and enable Show View Options (click the two arrows in the top-right corner of any Finder window).
- Terminal Commands Made Easy: The three Terminal commands in Step 3 might look scary, but they're just deleting hidden system files.
Frequently asked questions
Got questions about uninstalling Outlook from your Mac? You’re not alone! Here are the most common concerns—and clear answers to help you breeze through the process.
Will uninstalling Outlook delete my emails and contacts?
Nope! Uninstalling Outlook only removes the app—your emails, contacts, and calendar data stay safe in the cloud (if synced with Microsoft 365 or Exchange) or locally in your Mac’s Mail app. Just make sure to back up important data before uninstalling if you’re unsure.
How long does it take to fully uninstall Outlook?
The process is quick—usually under 5 minutes if you follow the steps in this guide. The longest part is often finding leftover files (like cache or preferences), but our method covers everything. Pro tip: Restart your Mac after uninstalling to ensure all traces are gone!
Can I still access my Outlook account after uninstalling?
You can switch to the web version (Outlook.com) or use the Mac Mail app to sync your account. Just sign in with the same Microsoft credentials, and your emails/calendar will appear seamlessly. No data loss—just a different interface!
What if Outlook won’t uninstall or keeps crashing?
Try these fixes first:
- Force quit Outlook (Command + Option + Esc → Quit Outlook).
- Delete leftover files manually (check
/Library/Containers/and/Library/Application Support/Microsoft/). - Run Disk Utility (Applications → Utilities) to repair permissions.
Should I reinstall Outlook later if I change my mind?
Yes! Just sign in with the same Microsoft account during setup, and Outlook will restore your emails, contacts, and settings automatically. Your data isn’t tied to the app—it’s all in the cloud or your Mac’s system files.
Wrapping up and next steps
Uninstalling Outlook from your Mac doesn’t have to be a hassle—whether you’re freeing up space, switching to another email client, or just decluttering, you now know how to fully erase all traces in just a few minutes! 🎉 By following the steps above, you’ve ensured no leftover files, preferences, or hidden data remain behind.
Ready for a fresh start? Now’s the perfect time to explore alternatives like Apple Mail, Gmail, or another email app that fits your workflow. Need help setting up your new favorite? Let us know—we’re happy to guide you! 🚀