How you uninstall Outlook in Windows 10 depends on which Outlook you have. The newer Outlook app can be installed as its own Windows application, while classic Outlook is commonly part of a Microsoft 365 or Office installation. Do not remove the entire Office suite unless that is actually what you intend.
Check Installed apps first
- Open Settings > Apps.
- Search the installed-app list for Outlook.
- If Outlook appears as a separate application with an Uninstall option, select it and confirm removal.
The app name and packaging can change as Microsoft updates Outlook distribution.
Classic Outlook may belong to Microsoft 365 or Office
If classic Outlook was installed with an Office suite, Windows may show Microsoft 365 or Microsoft Office as the installed product rather than offering Outlook as a separately removable app. Uninstalling that product can remove Word, Excel, PowerPoint, and other Office applications too.
Modify Office only when the installation supports it
Some Office installation types or deployment tools allow administrators to control which applications are installed. Consumer Microsoft 365 installations do not always provide a simple checkbox in Windows Settings for removing only classic Outlook. Follow Microsoft’s instructions for your exact Office product and deployment method.
Uninstalling Outlook does not delete a cloud mailbox
Removing the application does not normally delete messages stored in Microsoft 365, Outlook.com, Exchange, Gmail, or another mail server. However, locally stored PST files, offline data, signatures, and account-specific settings are separate concerns. Back up local-only data before changing the installation.
If Outlook is merely malfunctioning
Try updating Office, repairing the Microsoft 365/Office installation, or creating a new Outlook profile when appropriate before uninstalling the entire suite. The correct repair path depends on whether you use new Outlook or classic Outlook.
Windows 10 consideration
Windows 10’s standard free support ended October 14, 2025. Microsoft 365 and Outlook have their own system requirements, so check current Microsoft compatibility guidance if you are maintaining Office applications on Windows 10.
Matt Jacobs has been working as an IT consultant for small businesses since receiving his Master’s degree in 2003. While he still does some consulting work, his primary focus now is on creating technology support content for SupportYourTech.com.
His work can be found on many websites and focuses on topics such as Microsoft Office, Apple devices, Android devices, Photoshop, and more.