Install or reinstall classic Outlook on a Windows PC
To install a standalone version of classic Outlook for Windows, select your language from the dropdown, and then select Download. Follow the prompts to complete the installation. Which language do you need? Tip: You can also try installing classic Outlook from the Microsoft Store.
Applies To:
New Outlook for Windows
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Uninstall or remove apps and programs in Windows - Microsoft Support
There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly.
How to run Control Panel tools by typing a command
To run a Control Panel tool in Windows, type the appropriate command in the Open box or at a command prompt. NOTE: If you want to run a command from a command prompt, you must do so from the Windows folder.
Fix problems that block programs from being installed or removed ...
If you can’t install, uninstall, or update a desktop program in Windows 10, the Program Install and Uninstall troubleshooter can automatically fix common issues such as corrupted registry keys or incomplete uninstall data.
I can’t start Microsoft Outlook or receive the error “Cannot start ...
Use the classic Outlook startup troubleshooter to diagnose and fix several common classic Outlook for Windows issues for you. Select the button below to start the classic Outlook startup troubleshooter. You need to be on Windows 10 or higher to run the troubleshooter.
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Microsoft Office
Outlook for Windows not responding, hangs, freezes, or stops working
You can run the Inbox Repair Tool (scanpst.exe) to scan your Outlook data files and repair errors. For information on how to run the Inbox Repair Tool, go to Repair Outlook data files (.pst and .ost).
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, New Outlook for Windows
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Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.
Repair Outlook Data Files (.pst and .ost) - Microsoft Support
If you cannot open your Outlook data file or suspect that the file is damaged, use the Inbox Repair tool (scanpst.exe) to repair errors in the file.
Applies To:
Outlook for Microsoft 365, Outlook 2024, Outlook 2021, Outlook 2019, Outlook 2016, Microsoft365.com, Microsoft Office
Use the System File Checker tool to repair missing or corrupted system ...
When critical Windows system files are missing or corrupted, your operating system may begin to malfunction. Common symptoms include Windows features not working properly, system errors, or Windows becoming unresponsive or freezing.