If you’re using a device that’s managed by your work or school, the BitLocker recovery key is typically backed up and managed by your organization’s IT department.

在电脑上查找下载： 从任务栏选择“文件资源管理器”，或者按 Windows 徽标键 + E。

Notes: If you know your password, but just want to change it, go to account.microsoft.com Security tab, and select Change my password. If you know your username and password but they have stopped working, read My username and password have stopped working.

Il supporto tecnico Microsoft è disponibile per aiutarti con i prodotti Microsoft. Trova articoli, video e formazione su Microsoft Copilot, Microsoft 365, Windows, Surface e altro ancora.

Your first resource for technical support is your IT admin, who manages Microsoft Teams settings for your organization. They can work with us to solve any problems you're having.

חפש עזרה ומאמרי 'כיצד לבצע' עבור מערכות הפעלה של Windows. קבל תמיכה עבור Windows וקבל מידע על התקנה, עדכונים, פרטיות, אבטחה ועוד.

Blur. Select the Blur option, then use the slider to adjust the Blur intensity, then select Apply to blur the background.. Remove. Select the Remove option, then select Apply to remove the image background.. Replace. Select the Replace option, then use the color palette to select the background color. Alternatively, you can specify the RGB values for the desired color.

Share your file with others. To invite other people to access your PowerPoint file and collaborate, take these steps: With the presentation open, select the Share button in the top right corner of the ribbon. If you have not yet stored your presentation to OneDrive or SharePoint in Microsoft 365, a message will direct you to do so.

Learn how to change settings to enable Secure Boot if you are not able to upgrade to Windows 11 because your PC is not currently Secure Boot capable.

需要有关 Xbox 主机、Xbox 游戏或 Xbox 网络的帮助?了解如何与我们联系。