Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue.

Windows 10 in S mode is designed for security and performance, exclusively running apps from the Microsoft Store. If you want to install an app that isn't available in the Microsoft Store, you'll need to switch out of S mode.

See how to work with Office safe modes to safely use a Office program that has encountered certain problems.

Windows 10 in S mode is a version of Windows 10 that's streamlined for security and performance, while providing a familiar Windows experience. To increase security, it allows installing apps only from Microsoft Store and requires Microsoft Edge for safe browsing.

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).

Summary Resetting your PC in Windows is a powerful feature that allows you to restore your device to its original state, which can be useful whether you're experiencing performance issues, software problems, or simply want a fresh start. This feature is designed to be user-friendly and provides several options to suit different needs. Before you reset your PC Resetting your PC reinstalls ...

Learn about the recovery options in Windows. Find out how to reset your PC, go back to a previous version of Windows, or use media to reinstall Windows.

Unlike starting Windows in Safe Mode, it provides greater control to isolate the source of a problem Note: If your issue prevents you from booting into Windows, you won't be able to follow the steps in this article. After the device tries to restart a few times, it should automatically enter the Windows Recovery Environment.

Start your PC in safe mode. If you're having trouble restarting, you can start your PC in safe mode. See Start your PC in safe mode in Windows 10 for details. From safe mode, you can try the remaining troubleshooting steps. Check the Device Manager. Right-click the Start button and select Device Manager.

Starting your device in Safe Mode can help troubleshoot sign-in problems. If you can sign in using Safe Mode, it means that basic device drivers and default settings weren’t causing the sign-in problem.