Remote Assistance and Easy Connect let someone you trust take over your Windows 10 PC and fix a problem from wherever they are.

The TEXT function lets you change the way a number appears by applying formatting to it with format codes.It's useful in situations where you want to display numbers in a more readable format, or you want to combine numbers with text or symbols.

Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

Learn how to install the latest version of DirectX to enable games and multimedia applications on your system.

When the latest Windows update is ready for your device, it will be available to download from the Windows Update page in Settings.

Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.

Learn how to share Microsoft 365 Family subscription benefits with up to five people. Manage invitations, devices, and people you've shared Office with.

Follow the steps in this article to help you cancel your Microsoft 365 subscription.