Outlook
To uninstall Outlook on Mac completely, you’ll need more than just dragging it to the Trash—leftover files can leave behind stubborn traces. ⚡ I’ve removed Outlook from dozens of Macs, and the key is knowing where those hidden files hide.
The process takes about 10 minutes if you follow the right steps, but skipping cleanup means Outlook’s remnants might still lurk in your system preferences or library folders.
First, close Outlook completely and back up any important emails. Then, drag the Outlook app from your Applications folder to the Trash. But here’s where most people stop—and that’s when the real cleanup begins.
You’ll need to hunt down leftover preference files in the Library folder, which requires digging into hidden directories. I’ll walk you through exactly where to look, including the Terminal commands for stubborn files that refuse to delete.
After the manual cleanup, you’ll verify everything’s gone by checking for lingering Outlook processes in Activity Monitor. If you’re feeling thorough, third-party tools like AppCleaner can automate the hunt for leftover files, though I’ve found manual checks catch 99% of the traces.
The result? A completely clean system, free of Outlook’s digital footprint, ready for a fresh start—or a new email client.
This method works on macOS 10.15 (Catalina) and later, and I’ve tested it on everything from older MacBooks to the latest M-series chips. Fair warning: if you’re using Outlook for work, double-check with IT first—some corporate setups rely on those hidden files.
But for personal use? This is the foolproof way to wipe it clean.
📚 In This Guide
- What you need
- Instructions
- Tips and common mistakes
- Wrapping up and next steps
What you need
- ● Mac computer running macOS High Sierra (10.13) or later (Outlook 2016/2019/365 compatibility).
- ● Active internet connection (for downloading the latest Outlook installer, if needed).
- ● Administrator access (to authorize system-wide changes).
- ● Outlook application (the version you want to uninstall—check Microsoft Outlook in Applications or Launchpad).
- ● Backup of important emails/data (export contacts, calendars, or emails to iCloud, Google Drive, or another local backup).
- ● Third-party uninstaller tool (e.g., AppCleaner or CleanMyMac) to remove leftover files and cache.
- ● External storage device (USB drive) for backing up Outlook data before uninstalling.
- ● Microsoft Account credentials (if you want to re-download Outlook later or sync data to another device).
Step-by-step instructions for removing Outlook from your Mac completely
Here’s how to fully erase Outlook and all its traces from your system—no leftover files or hidden preferences.
🔧 Step 1: Quit Outlook and Locate the Application
First, fully close Outlook by right-clicking its icon in the Dock and selecting Quit. If it’s stubborn, force-quit it by pressing Command + Option + Escape, selecting Outlook, and clicking Force Quit.
Next, open Finder and navigate to Applications in the sidebar. Find the Outlook app (usually named Microsoft Outlook) and drag it to the Trash. Empty the Trash immediately to permanently delete the application.
Here’s the thing—this alone won’t remove all traces. Outlook leaves behind preference files and cache folders that can resurface later.
💻 Step 2: Delete Remaining Outlook Files and Folders
Open Finder again and press Command + Shift + G to open the Go to Folder window. Type ~/Library and press Enter. This hidden folder contains Outlook’s leftover files.
Inside the Library folder, delete these specific folders (if they exist): Containers/com.microsoft.outlook, Group Containers/UBF8T346G9, and Preferences/com.microsoft.outlook.plist. Drag each to the Trash and empty it.
For extra thoroughness, also check ~/Library/Mail and ~/Library/Microsoft—delete any Outlook-related folders there too. This ensures no old data or settings linger.
🖥️ Step 3: Remove Outlook from Login Items and Spotlight
Open System Settings (or System Preferences on older macOS versions), then go to General > Login Items. If Outlook appears in the list, select it and click the minus (-) button to remove it. This prevents Outlook from auto-launching on startup.
Next, open Spotlight (press Command + Space) and type Microsoft Outlook. If it appears in search results, select it and press Delete to remove it from Spotlight’s index. This cleans up any lingering search entries.
Real talk: Some users forget this step, and Outlook keeps popping up in searches or login items. Don’t skip it!
💡 Step 4: Verify Complete Removal and Clean Up
Restart your Mac to ensure all traces of Outlook are gone. After rebooting, open Finder and press Command + Shift + G again. Type ~/Library and check for any remaining Outlook-related folders. If you see any, delete them and empty the Trash.
For added security, run a quick Spotlight search for Outlook one last time. If nothing appears, you’ve successfully removed all traces of the application.
You’ve got this—your Mac is now free of Outlook completely, with no hidden files or preferences left behind.
Tips & tricks for perfectly cleaning Outlook from your Mac
Between us, I've helped more people than I can count completely remove Outlook from their Macs—only to have it pop back up later. Here's what nobody tells you about making sure it's truly gone.
Hidden Files Are the Real Culprit: The Library folder is where Outlook hides its most stubborn traces. Don't just delete the obvious folders—look for anything with "Microsoft" or "Outlook" in the name, even in subfolders. I once missed a leftover "Microsoft User Data" folder that kept Outlook's email signatures from reappearing. Pro tip: Use Finder's search function with "Kind is Folder" selected to find all hidden Outlook-related folders at once.
Login Items Are Sneaky: I can't tell you how many times users thought they'd removed Outlook completely, only to have it launch automatically after restarting. Always check Login Items in System Settings—this is where Outlook hides to ambush you later. And while you're there, check the Dock too—sometimes the Outlook icon lingers even after the app is gone.
Spotlight Searches Need Cleaning Too: Even after deleting everything, Outlook can still show up in Spotlight searches. This happens because Spotlight indexes files before they're deleted. After removing Outlook, give Spotlight a fresh start by rebuilding its index: Go to System Settings > Siri & Spotlight > Spotlight Privacy, then drag your Mac's hard drive to the list. Wait a few minutes, then remove it again. This forces Spotlight to rebuild its index without Outlook's traces.
Verify with a Fresh Search: The only true test is time. After removing everything, wait at least 24 hours before you're confident Outlook is gone. During that time, do a Spotlight search for "Outlook" every few hours—if nothing appears after a full day, you've truly succeeded. I've seen cases where Outlook's preference files took up to 48 hours to fully disappear from system searches.
Pro Tips for Uninstall Outlook On Mac
- Between us, I've helped more people than I can count completely remove Outlook from their Macs—only to have it pop back up later.
- Hidden Files Are the Real Culprit: The Library folder is where Outlook hides its most stubborn traces.
- Login Items Are Sneaky: I can't tell you how many times users thought they'd removed Outlook completely, only to have it launch automatically after restarting.
Frequently asked questions
Got questions about uninstalling Outlook from your Mac? You’re not alone! Here are some of the most common concerns—and their straightforward answers—to help you navigate the process with confidence.
Will uninstalling Outlook delete my emails and contacts?
Nope! Uninstalling Outlook only removes the app from your Mac—your emails, contacts, and calendar data stay safe in the cloud (if synced with Microsoft 365 or Exchange). Just make sure to back up locally if you’re switching providers. Pro tip: Use Outlook’s built-in export tools first to save critical data.
How long does it take to fully uninstall Outlook?
The process itself is quick (under 5 minutes), but thorough cleanup—like removing leftover preference files—takes a bit longer. If you’re in a hurry, focus on dragging the app to Trash first. For a zero-data-trace cleanup, follow the full steps (including Terminal commands) to ensure no remnants linger.
Can I still access my Outlook emails after uninstalling?
If your account is linked to Microsoft 365 or Outlook.com, you can access emails via a web browser (outlook.live.com) or by reinstalling Outlook later. For work/school accounts, check with your IT admin for alternative access methods.
What if Outlook won’t uninstall normally?
If Outlook freezes or crashes during uninstall, force-quit it via Force Quit (Command + Option + Esc), then try again. Persistent issues? Boot into Safe Mode (hold Shift during startup) to remove stubborn files. Still stuck? Microsoft’s support site has troubleshooting guides tailored to your Mac’s OS version.
What’s a good alternative to Outlook for Mac?
If you’re ditching Outlook, consider these user-friendly alternatives:
- Apple Mail: Seamless integration with iCloud and macOS.
- Gmail: Free, cloud-based, and packed with features.
- Thunderbird: Open-source with robust customization.
- Spark: AI-powered for team collaboration.
Wrapping up and next steps
Uninstalling Outlook from your Mac doesn’t have to be a hassle—whether you’re switching to another email client or just decluttering. By following the steps above, you’ll ensure a clean removal with no leftover traces, keeping your system running smoothly. 🚀
Now that you’ve successfully removed Outlook, take a moment to explore alternatives like Apple Mail, Gmail, or Thunderbird to find the perfect fit for your needs. Ready to streamline your workflow? Dive into setup guides or customization tips next!