Microsoft security help and learning
Get security info and tips about threat prevention, detection, and troubleshooting. Including tech support scams, phishing, and malware.
重置忘记的 Microsoft 帐户密码 - Microsoft 支持
了解如何重置更改 Microsoft 帐户密码。 获取有关忘记 Microsoft 帐户密码的帮助。
Applies To:
Microsoft account dashboard
How to add an email address or phone number to your Microsoft account
Add an email address or phone number to your Microsoft account and keep your current contacts, online storage, subscriptions, and account settings.
How to redeem gift cards and codes | Xbox Support
Learn how to redeem a Microsoft/Xbox gift card or other code on your mobile device, Windows device, or Xbox console.
How to play MP4 files in Windows 10 - Microsoft Support
Play MP4 files in Windows 10 by right-clicking the file and choosing what application to open it with.
Why am I having trouble signing in to Microsoft Teams?
How to sign in to Microsoft Teams with modern authentication. How to sign in to Microsoft Teams is you are having trouble.
Applies To:
Microsoft Teams
Your account settings are out-of-date in Mail or Calendar for Windows ...
Learn what to do if you receive a message in Mail or Calendar for Windows 10 that your account settings are out of date.
Applies To:
Calendar for Windows 10, Mail for Windows 10
如何登录到 Microsoft 帐户 - Microsoft 支持
使用 Microsoft 帐户登录到 Microsoft 服务，如 Windows、Microsoft 365、OneDrive、Skype、Outlook 和 Xbox Live。
Applies To:
Microsoft 365 for home, Outlook.com, Microsoft 365 for Mac, Microsoft 365 for Windows, Microsoft account dashboard, Microsoft Edge, Microsoft Teams, OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows
Turn on device encryption - Microsoft Support
Learn how to turn on device encryption, or standard BitLocker encryption in Windows.
Set up your Apple device for cloud gaming | Xbox Support
See how Xbox cloud gaming works on iOS mobile devices.