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Microsoft Teams help & learning
Get help with your questions about Microsoft Teams from our how-to articles, tutorials, and support content.
Product activation for Windows – online & support telephone numbers
Learn how to activate Windows using an internet connection, automated system, or live support advocate.
How to investigate a billing charge from Microsoft
Learn what to do if you find charges you don't recognize from Microsoft.
Applies To: Microsoft account dashboard
将 Windows 电脑用作移动热点 - Microsoft 支持
通过 Wi-Fi 与其他设备共享 Internet 连接,将 Windows 电脑变成移动热点。 你可以共享 WLAN、以太网或手机网络数据连接。
Microsoft Store doesn't open - Microsoft Support
Try these troubleshooting steps if Microsoft Store does not launch in Windows 10.
Change your profile picture in Microsoft Teams
To change your profile picture in Microsoft Teams, click your existing profile picture and select the camera icon.
Applies To: Microsoft Teams
Find and lock a lost Windows device - Microsoft Support
Use Find my device to locate and lock your lost or stolen Windows devices.
Applies To: Microsoft account dashboard
Automatically fix Windows security issues - Microsoft Support
Troubleshoots and fixes common issues with security and malware prevention in Windows.
Sign in and create multiple profiles in Microsoft Edge
With Edge Chromium, you can add multiple profiles. Profiles allow multiple users to operate in a shared environment while maintaining access to their personalized browser settings, bookmarks, and extensions.
Internet Explorer Downloads - Microsoft Support
Download the latest internet browser recommended by Microsoft from the official support page.