Reset or recover your lost Microsoft account password
If you’ve forgotten your Microsoft account password, learn how to do a password reset online or by using your Xbox console.
欢迎使用 Windows
获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。
Troubleshoot external monitor connections in Windows 10
Troubleshoot issues that occur when setting up external monitors. If you are trying to set up an external monitor and it’s not working, press the Windows logo key + P to make sure that the Extend option is selected. If the Extend option is selected, try the following troubleshooting tips.
Receive files over Bluetooth - Microsoft Support
Receive photos, videos, or other kinds of files that you or a friend shares from another device, such as a phone, laptop, or tablet. On your PC, select Start > Settings > Devices > Bluetooth & other devices. Learn how to pair.
Download and Install or Reinstall Office 365 or Office 2019 on a PC or Mac
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Office の更新プログラムをインストールする - Microsoft サポート
PC で Microsoft Office を更新する方法と、Office 更新プログラムをインストールするためのトラブルシューティングのヒントについて説明します。
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Office 2016, Microsoft 365 for home, Office for business, Office 365 Small Business, Office 365 operated by 21Vianet, InfoPath 2013, InfoPath Filler 2013, Office.com
Ways to install Windows 11 - Microsoft Support
Find out how to install Windows 11 on your device, whether you need to use Windows Update, Cloud download, or Local reinstall. Get tips and troubleshooting help from Microsoft Support.
Enable TPM 2.0 on your PC - Microsoft Support
Learn how to check if your PC is capable of running TPM 2.0 or how to enable TPM 2.0 to upgrade to Windows 11.
Fix Ethernet connection problems in Windows - Microsoft Support
Learn about different things you can try to fix Ethernet network connection problems in Windows
Microsoft 365 Training
Get productive quickly with Microsoft 365 videos and tutorials. Explore Microsoft 365 training guides and tips to collaborate with anyone, anywhere.