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Create an Outlook Data File (.pst) to save your information
Create Outlook Data Files (.pst) on your computer to save Outlook items by account, project, or to archive older items.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office for business
Back up your BitLocker recovery key - Microsoft Support
Having a backup copy of your BitLocker recovery key helps to prevent serious issues later. It takes less than a minute to back up your key and this article will show you how.
Microsoft 365 または Office 2021 を PC または Mac にダウンロードしてインストール、または再インストールし ...
PC または Mac に Microsoft 365 または Office 2019 をインストール、再インストール、またはライセンス認証する方法について説明します。
Applies To: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin, Office.com
Help with Microsoft Store purchases - Microsoft Support
Learn how to contact Microsoft Store support to get help for your payment and billing issue.
Applies To: Microsoft account dashboard
Upgrade to Windows 10: FAQ - Microsoft Support
Learn how to upgrade your existing device to Windows 10 or buy a new PC. Get answers to common questions about upgrading to Windows 10.
Share things with nearby devices in Windows - Microsoft Support
Learn how to share documents, links, and pictures with nearby devices using Bluetooth or Wi-Fi in Windows.
Windows help and learning
Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.
Track my Microsoft Rewards orders - Microsoft Support
Sign in to account.microsoft.com, then select Order History on your Rewards page.
Get help with Outlook.com - Microsoft Support
Get help with using mail, calendar, and contacts on Outlook.com.
Applies To: Outlook.com
在 Windows 中管理用户帐户 - Microsoft 支持
了解如何在 Windows 10 和 Windows 11 中添加用户帐户。 有了帐户之后,每个人都可拥有单独的文件、浏览器收藏夹和私人桌面。