Find out how to boot into safe mode in Windows from Settings, the sign-in screen, and a black or blank screen.

You can add an input language in Settings. Adding an input language lets you set a language-preference order for websites and apps. It also lets you change your keyboard language.

Keyboard shortcuts are keys or combinations of keys that provide an alternate way to do something you'd typically do with a mouse. Here’s the list for the new Microsoft Edge and Microsoft Edge for Mac.

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.

Use the Office offline installer to install Office 2016 or Office 2013 if you don't have an active Internet connection or you're having problems with slow speed or unreliable connections.

Learn how to open and run DxDiag.exe on Windows to collect device information and troubleshoot DirectX sound and video issues.

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

How to open the Camera app in Windows. To open up your webcam or camera, select the Start button, then select All apps, and then select Camera in the list of apps. If you have multiple cameras, you can switch between them by selecting Change Camera at the top right once the Camera app is opened.. Open Camera

Find out how to install the latest driver for your printer. If you recently upgraded Windows, your printer driver might need to be reinstalled.

如何将 IF 函数 (与 Excel 中) AND、OR 和 NOT 函数结合使用，以在给定值之间进行逻辑比较。