如何加密文件或文件夹 - Microsoft 支持
加密是将数据转换为代码以防止未经授权的访问的过程。 在 Windows 中,可以使用内置工具来加密文件和文件夹,确保只有具有正确解密密钥的个人才能访问内容。
将敏感度标签应用于文件 - Microsoft 支持
注意: 此功能需要 Microsoft 365 订阅。 有关详细信息,请参阅 我的 Office 版本是否支持敏感度标签?. 如果你是希望开始使用敏感度标签的管理员,请参阅 敏感度标签入门。 若要查看功能和版本可用性的完整列表,请参阅 Word、Excel 和 PowerPoint 中的敏感度标签功能。
Applies To: Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, Excel for the web, Word for the web, PowerPoint for the web, Excel 2024, Outlook 2024, PowerPoint 2024, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Microsoft365.com, Outlook on the web, Excel for iPad, Word for iPad, PowerPoint for iPad, Excel for iPhone, Word for iPhone, PowerPoint for iPhone, Word for Android tablets, Excel for Android tablets, PowerPoint for Android tablets, Excel for Android phones, My Office for iPhone, New Outlook for Windows, Outlook for Android, Outlook for iOS, PowerPoint for Android phones, Word for Android phones
Xbox Support
Xbox Support 提供有关 Xbox、Game Pass 和账单问题的帮助,并通过社区提供建议和客户服务。
Find your BitLocker recovery key - Microsoft Support
A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This key, which is a 48-digit number, is used to regain access to the drive.
安裝 Microsoft Defender - Microsoft 支援服務
安裝 Microsoft Defender,保護您的Android、iPhone、Mac和 Windows 裝置免於受到威脅。 在您的裝置上下載 Microsoft Defender,方法如下: 掃描下列 QR 代碼 在 App Store 中搜尋 Microsoft Defender 與您的裝置共用,下列連結: 複製連結 我們鼓勵您為每個人至少在五部裝置上安裝 Microsoft Defender。 準備好試試看了嗎?
Applies To: Microsoft Defender on Android, Microsoft Defender on iOS, Microsoft Defender on Mac, Microsoft Defender on Windows
Open encrypted and protected messages - Microsoft Support
Learn how to identify and open encrypted and protected emails no matter what email client you're using.
Applies To: Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2024, Outlook 2024 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Outlook 2016 for Mac, Microsoft365.com, Outlook on the web, Outlook.com, Outlook for Mac 2011, Microsoft Office, New Outlook for Windows, Outlook for Android, Outlook for iOS, Outlook Web App
Phone Link requirements and setup - Microsoft Support
We recommend always having the latest version of Windows installed to make sure you get the best experience with the Phone Link .
Backup and restore with File History - Microsoft Support
File History is a handy feature in Windows that helps you protect your personal files and folders from accidental loss or damage. Think of it as a backup system that automatically saves copies of your files, so you can easily restore them if something goes wrong. Whether you accidentally delete a file, make unwanted changes, or experience a technical issue, File History can come to your rescue ...
查找 BitLocker 恢复密钥 - Microsoft 支持
当 BitLocker 无法在 Windows 中自动解锁加密驱动器时,需要 BitLocker 恢复密钥。 此密钥是一个 48 位数字,用于重新获得对驱动器的访问权限。
“手机连接”疑难解答 - Microsoft 支持
我以前使用过手机连接 ,现在我的设备未连接或无法重新连接 如果像以前一样在重新连接设备时遇到问题,请执行以下步骤来解决此问题: 在 Android 设备上: 确保应用已更新到最新版本。 在移动设备上打开 连接至 Windows 。 在“关联帐户”下单击Microsoft 帐户名称。 转到 “帐户设置” > 注销和 ...