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Microsoft サポートにお問い合わせください。一般的な問題の解決策を見つけるか、サポート エージェントからサポートを ...
Activate Office - Microsoft Support
Learn how to activate Office pre-installed on new Windows 10 PCs or with a new product key.
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 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 Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Microsoft 365 admin, Project for Office 365
Finding your BitLocker recovery key in Windows - Microsoft Support
Learn different ways to locate your BitLocker recovery key in Windows, and learn about how BitLocker might have been activated on your system.
Upgrade Windows Home to Windows Pro - Microsoft Support
Learn how to upgrade from Windows 10 Home to Windows 10 Pro or Windows 11 Home to Windows 11 Pro, including how to use a valid product key or the Microsoft Store.
Change or reset your password - Microsoft Support
Learn how to change or reset your Windows password if you've forgotten or lost it.
Send automatic replies (out of office) from Outlook
How to send automatic out-of-office replies from Outlook (depending on the type of email account you have).
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Microsoft 365 admin, Outlook on the web, Outlook.com, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
Give your PC a Fresh Start - Microsoft Support
Fresh Start in Windows 10 lets you perform a clean reinstallation and update of Windows while keeping your personal data and most Windows settings intact.
Start your PC in safe mode in Windows - Microsoft Support
Find out how to boot into safe mode in Windows from Settings, the sign-in screen, and a black or blank screen.
Use the Office offline installer - Microsoft Support
Use the Office offline installer to install Office 2016 or Office 2013 if you don't have an active Internet connection or you're having problems with slow speed or unreliable connections.
Applies To: Office 2021, Office 2019, 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, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin
Change your browser home page - Microsoft Support
Get the steps for changing your home page in Microsoft Edge, Internet Explorer 11, Google Chrome, Firefox, and Safari.