Select Review activity to check for any unusual sign-in attempts on the Recent activity page.If you see account activity that you're sure wasn't yours, let us know and we can help secure your account—if it's in the Unusual activity section, you can expand the activity and select This wasn't me.If it's in the Recent activity section, you can expand the activity and select Secure your account.

Note: if you need to find your console's name, on the console, press the Xbox button to open the guide, and then select Profiles & system (your account icon) > Settings > System > Console info.If you need to find its IP address, in Settings, choose General > Network settings > Advanced settings.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

On the settings page for that app, change the setting for Let this app run in the background.Here’s a summary of each option: Always.The app is always allowed to run in the background—receive info, send notifications, and stay up to date—even when you’re not actively using it.

Learn how to manage the online safety and privacy settings on the Xbox console for you and every member of your family group.

Change your document's header or footer text, remove the first page header or footer, add page numbers, images, or change colors and fonts on headers and footers.

Extension. Format. aac, adt, adts. Windows audio file. accdb. Microsoft Access database file. accde. Microsoft Access execute-only file. accdr. Microsoft Access ...

DirectX 9.0c 通过安装 DirectX 9.0c 最终用户运行时适用于 Windows XP 和 Windows Server 2003。. 某些应用程序和游戏需要 DirectX 9。 但是，你的计算机包含更新版本的 DirectX。 如果安装并运行需要 DirectX 9 的应用程序或游戏，你可能会收到错误消息“无法启动此程序，因为计算机中丢失 d3dx9_35.dll。

To get your team up and running in Microsoft Teams, you'll need to create the team, add people, and add channels. Here's how. To create a team, click Join or create a team.This is where you create your own team, or discover existing ones.

Office for the web programs are included in most Microsoft 365 plans. Click a document, or use the three-dot Open Menu in a library to open Word, Excel, PowerPoint, OneNote, and PDF files in your browser. Outlook attachments and Lync Web App meeting notes also open in Office for the web.