Download and install or reinstall Microsoft 365 or Office 2021 on a PC ...
Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.
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
How to sign in to Hotmail - Microsoft Support
Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.
Applies To:
Outlook.com
Fix Bluetooth problems in Windows - Microsoft Support
Learn how to troubleshoot Bluetooth problems in Windows. Resolve issues connecting a Bluetooth device or accessory.
View and delete browser history in Microsoft Edge
Learn how to view and delete your browser history and other history in Microsoft Edge.
如何登录到 Hotmail - Microsoft 支持
Hotmail 现在是 Outlook.com。 了解如何登录以访问 Outlook.com、Hotmail、Live 或 MSN 电子邮件帐户。
Applies To:
Outlook.com
Pair a Bluetooth device in Windows - Microsoft Support
Learn how to connect a Bluetooth device in Windows and adjust Bluetooth pairing settings.
Recover lost or deleted files - Microsoft Support
Learn how to recover files that have been lost, deleted, or accidentally changed.
Enable TPM 2.0 on your PC - Microsoft Support
Learn how to check if your PC is capable of running TPM 2.0 or how to enable TPM 2.0 to upgrade to Windows 11.
Getting started with the new Outlook for Windows
The new Outlook for Windows brings the latest features, intelligent assisted capabilities and a new modern and simplified design to your Outlook app.
Applies To:
New Outlook for Windows
How to sign in to or out of Outlook.com - Microsoft Support
Try these solutions if you can't sign in to your Outlook.com, Hotmail, Live, or MSN email account, or you're not sure how to sign in or sign out.
Applies To:
Outlook.com