Windows での BitLocker 回復キーの検索 - Microsoft サポート
Windows で BitLocker 回復キーを見つけるためのさまざまな方法について説明し、BitLocker がシステムでどのようにアクティブ化されているかについて説明します。
Boot Surface from a USB device - Microsoft Support
Starting your Surface from a USB drive can be useful if you want to change firmware settings or Windows startup settings. Booting from a USB device doesn’t refresh or reset your Surface.
Windows Startup Settings (including safe mode) - Microsoft Support
Get troubleshooting advice and see a list of options available for starting Windows in diagnostic modes such as safe mode.
Manage background activity for apps in Windows
Learn how to manage background activity for apps to help save battery power in Windows.
Camera app shows error "0xA00F4244 NoCamerasAreAttached"
Get help when Windows can't find the camera
Windows 11 and Secure Boot - Microsoft Support
Learn how to change settings to enable Secure Boot if you are not able to upgrade to Windows 11 because your PC is not currently Secure Boot capable.
Filter junk email and spam in Outlook - Microsoft Support
Learn how to block someone or add email addresses to the safe senders list in Outlook on the web.
Applies To:
Office for business, Office 365 Small Business, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
Find out which version of Microsoft Edge you have
Open Microsoft Edge, select Settings and more (...), and then select Settings. Look for your version under About Microsoft Edge.
Save or convert to PDF or XPS in Office Desktop apps
Save your Office file as a PDF without needing additional software or add-ins.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Access for Microsoft 365, Project Online Desktop Client, Publisher for Microsoft 365, Word for the web, OneNote for the web, PowerPoint for the web, Excel 2021, Word 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, OneNote 2021, Excel 2019, Word 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Excel 2016, Word 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Project Online
激活 Windows - Microsoft 支持
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。