Get help with Windows activation errors - Microsoft Support
Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.
Request a refund for digital games | Xbox Support
Find out how to submit a request for a refund for a purchase of digital Xbox content.
Fix USB-C problems in Windows - Microsoft Support
Learn how to troubleshoot USB-C problems in Windows and fix USB devices, ports, and adapters not working properly.
Download Microsoft Authenticator - Microsoft Support
The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.
Office アプリケーションを修復する - Microsoft サポート
Office のインストールの種類 (クイック実行または MSI ベース) によって異なります。修復を続行するには、次のオプションが表示されます。
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, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, Office 2016, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, InfoPath 2013, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
回復ドライブを作成する - Microsoft サポート
回復ドライブの作成をお勧めします。 これにより、PC でハードウェア障害などの大きな問題が発生した場合は、回復ドライブを使用してWindows 11を再インストールできます。
Save or forget passwords in Microsoft Edge - Microsoft Support
Use Microsoft Edge settings to save user name and password information and save time when signing in to websites.
Getting the most out of your PC backup - Microsoft Support
Learn why it's important to have a backup, and how Windows Backup can help you keep your files and settings safe.
更改桌面背景图像 - Microsoft 支持
使用 Windows 设置应用更改桌面背景和颜色。
Reset a forgotten Microsoft account password
Learn how to reset or change your Microsoft account password. Get help with a forgotten Microsoft account password.
Applies To:
Microsoft account dashboard