Oct 14, 2025 · If a problem doesn't reappear when you start in safe mode, you can eliminate the default settings, basic device drivers, and services as possible causes. Other startup settings …

Automated safe mode is triggered if a Microsoft Office application could not start due to specific problems, such as an add-in or extension that won't start or a corrupted resource, file, registry, …

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 …

If your problem does not occur while the computer is in a clean boot environment, then you can determine which startup app or service is causing the problem by systematically turning them …

Are you having trouble starting Outlook or receiving "Cannot start Microsoft Outlook. Cannot open the Outlook window" error messages? We can fix the problem for you, or you can use the …

Describes how to start your computer in Safe mode, which uses a minimal set of drivers and startup programs so that you can determine whether a background program is interfering with …

When you start Windows, several applications and services start automatically, and then run in the background. These applications and services can interfere with other software on your PC.

Resolve Windows blue screen errors with tips and resources to do your own troubleshooting, or contact the Microsoft support if you need more help.

You may need to start Windows in Safe mode or different advanced troubleshooting modes so that you can find and fix the problem. The Windows Startup Settings article can help you with …

If you still receive the error in Safe Mode, go to the next section and follow the steps to do Clean Boot troubleshooting. To learn how to start your PC in Safe Mode, see the following article on …