Want to add a padlock to your email messages? You can use S/MIME in Outlook on the web to increase the security of messages. A digitally encrypted message can only be opened by recipients who have the correct key.

Check spelling in a message, or set the Always check spelling before sending option to check spelling automatically.

睡眠使用非常少的电源，你的电脑启动速度更快，你可以立即返回到你离开的地方。 不必担心因电池耗尽而丢失工作，因为如果电量不足，Windows自动保存所有工作并关闭电脑。 当你离开电脑一小段时间（如休息一下）时，请使用"睡眠"。

在 Windows、Android 或 iOS 设备上使用远程桌面连接到 Windows 10 远程电脑。 下面介绍如何设置电脑以允许远程连接，然后连接到你设置的电脑。

Find out how to change your capture settings on Windows 10/11 devices.

You can see multiple calendars at the same time side-by-side or combined into a stacked overlay view to help you see availability across calendars.

Learn how to use auto color management in Windows 11 to get accurate colors on your PC.

This article shows you how to create macros that can be used to help with tasks you repeat often.

When you install Skype for Business, you need to choose between a 32-bit version installer and a 64-bit version installer. Use the 32-bit installer if you’re using a 32-bit version of Windows and the 64-bit installer with a 64-bit version of Windows.

Get the most out of your subscription with expert advice and support from small business advisors. Business Assist for Microsoft 365 is designed for small businesses to give you and your employees around-the-clock access to small business advisors as you grow your business, from onboarding to everyday use.