Open Outlook in safe mode - Microsoft Support
If Outlook won't open, try opening it in safe mode, which disables add-ins. 1. Right-click the Start button, and click Run. 2. Type Outlook.exe /safe, and click OK. Tip: If Windows can't find Outlook.exe /safe, try using the full path to Outlook (for example C:\Program Files\Microsoft Office\OfficeXX, where XX is your version number). More on starting Outlook in safe mode and disabling add-ins.
Open Office apps in safe mode on a Windows PC - Microsoft Support
This method works for most Office versions on a Windows PC: Find the shortcut icon for your Office application. Press and hold the CTRL key and double-click the application shortcut. Click Yes when a window appears asking if you want to start the application in Safe Mode.
Applies To:
Office 2024, Office 2021, Office 2019, Office 2016
Download and install or reinstall Office 2021, Office 2019, or Office ...
Learn how to install Office 2021, 2019, or 2016 on your PC or Mac.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Office 2016, Office 2016 for Mac
Use the Office offline installer - Microsoft Support
Step 2. Install Office Open the Office folder in the virtual drive, and then select either the Setup32.exe to install the 32-bit version of Microsoft 365, or Setup64.exe to install the 64-bit version to begin the offline installation. If you're not sure which version is right for you, see Choose the 64-bit or 32-bit version of Office.
Applies To:
Office 2024, Office 2021, Office 2019, Office 2016, Microsoft 365 for home, Microsoft365.com, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Install or reinstall classic Outlook on a Windows PC
More help If you're using a work or school account and couldn't install classic Outlook following the steps above, contact the IT admin in your organization for assistance.
Applies To:
New Outlook for Windows
Download, install, or reinstall Microsoft 365 or Office 2024 on a PC or ...
Learn how to install, reinstall, or activate Microsoft 365 or Office 2024 on a PC or Mac.
Applies To:
Office 2024, Office 2024 for Mac, Microsoft 365 for home, Microsoft365.com, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Classic Outlook crashes opening or starting a new email
Last Updated: July 10, 2025 ISSUE When you open or start a new email, classic Outlook crashes. This issue occurs because Outlook cannot open the Forms Library. This issue can occur for Outlook on all Microsoft 365 Office channels. The emerging cases for this issue are on virtual desktop infrastructure (VDI).
Applies To:
Outlook for Microsoft 365
Démarrer Outlook en mode sans risque - Support Microsoft
Démarrer Outlook en mode sans risqueSi Outlook ne s’ouvre pas, essayez de l’ouvrir en mode sans risque, qui désactive les compléments. 1. Faites un clic droit sur le bouton Démarrer, puis cliquez sur Exécuter. 2. Tapez Outlook.exe /safe, puis cliquez sur OK. Astuce : Si Windows ne parvient pas à trouver Outlook. exe/safe, essayez d’utiliser le chemin d’accès complet à Outlook ...
Outlook openen in de veilige modus - Microsoft Ondersteuning
2. Typ Outlook.exe /safe en klik op OK. Tip: Als u Outlook. exe/safe niet kunt vinden, gebruikt u het volledige pad naar Outlook (bijvoorbeeld C:\Program Files\Microsoft Office\OfficeXX, waarbij XX het versienummer is). Meer informatie over het starten van Outlook in de veilige modus en het uitschakelen van invoegtoepassingen.
Install or reinstall classic Outlook on a Windows PC
More help If you're using a work or school account and couldn't install classic Outlook following the steps above, contact the IT admin in your organization for assistance.
Applies To:
New Outlook for Windows