Learn how to find your Windows product key for activation or when to use a digital license instead.

Learn how to view and delete your browser history and other history in Microsoft Edge.

Hotmail 现在是 Outlook.com。 了解如何登录以访问 Outlook.com、Hotmail、Live 或 MSN 电子邮件帐户。

Learn how to troubleshoot USB-C problems in Windows and fix USB devices, ports, and adapters not working properly.

Learn how to find and change settings in Windows. Find your Windows settings in a snap! Select the Start button, then select Settings .From there, browse the categories or use search to find what you're looking for.

Learn how to download and install apps you need from your Microsoft 365 business subscription.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Your Phone is now Microsoft Phone Link! Learn more about our recent name change for our PC and Android mobile apps.

As with past updates, we respect your active hours. Changes enabled via the cloud take a couple seconds to install, so they won't interrupt your work or spend device resources. Restarting can be scheduled at any time that's convenient for you.

How to send automatic out-of-office replies from Outlook (depending on the type of email account you have).