如果无法登录到Microsoft帐户，大多数问题都可以通过登录帮助程序工具进行识别。 该工具将要求你输入尝试登录时使用的电子邮件地址或移动电话号码，并检查你提供的详细信息。

If you travel often, your new locations may show as unusual activity. To travel without disruptions or alerts, we recommend using Microsoft Authenticator to sign in.. If you get an email about unusual activity and you're not sure if it's from Microsoft, you can safely sign in to your Microsoft account any time without clicking links in the email.

Windows Media Player is available for Windows-based devices. Use this table to find the right version of the Player for your system. (If you've got a Mac, you can download Windows Media Components for QuickTime to play Windows Media files.)

This article describes the formula syntax and usage of the NETWORKDAYS function in Microsoft Excel.. Description. Returns the number of whole working days between start_date and end_date.

Make sure Wi-Fi is turned on.To do this on your PC, select the Network icon at the far right of the taskbar, and then check the Wi-Fi quick setting.

若要将其关闭，请将设置切换为“关闭”。 关闭 Microsoft Defender 防火墙可能会使设备（以及网络，如果有）更容易受到未经授权的访问。

如果遇到特定文件类型的错误，则可能是编解码器缺失或过时。 若要解决此问题，请执行以下操作： 检查文件属性： 确保电脑上有正确的编解码器来播放媒体文件。 若要检查文件格式和编解码器信息，请右键单击媒体文件，选择“属性”，然后转到“详细信息”选项卡。

With cameo, you can insert your live camera feed directly on a PowerPoint slide.You can then apply the same effects to your camera feed as you can to a picture or other object, including formatting, transitions, and styles.

如果遇到未从 中安装的应用的问题Microsoft Store，请确保 允许桌面应用访问相机已打开。无法关闭单个桌面应用的相机访问权限。 Internet 浏览器（如 Microsoft Edge）和许多视频会议应用（如 Microsoft Teams）是需要启用此设置的桌面应用。

弹出窗口阻止程序无法阻止哪些弹窗？ 如果在启用此功能并且尝试了上面列出的解决方案后，网页中仍然显示了弹出窗口，则它们可能是网站广告，以弹出窗口的样子呈现。