Important: If your Microsoft cloud storage is full, you cannot send or receive email.Messages sent to you while your storage was full are bounced back to the sender and are unrecoverable. Check your mailbox storage to see what's taking up space. Learn more about recent changes.

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IMPORTANT This update is not needed and will not be offered if your Windows Recovery Environment (WinRE) meets any of the following conditions: If the WinRE recovery partition does not have sufficient free space.

Set a duration for your status. When you want to change your status for a specific period of time—for example, to set Do not disturb for an hour of concentrated work—you can set a duration so that Teams will automatically reset your status at the end of the allotted time.. You can set durations for any status except Available.. Select your profile picture > current status > Duration.

即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：

Tip: If you've already set up speech recognition, pressing Windows logo key +Ctrl+S opens speech recognition and you're ready to use it. If you want to retrain your computer to recognize your voice, press the Windows logo key , type Control Panel, and select Control Panel in the list of results. In Control Panel, select Ease of Access > Speech Recognition > Train your computer to better ...

提示: 如果未将 Visio 列为“ 应用 & 设备”下的安装选项，则可能意味着你没有许可证。检查分配的许可证，如果你没有在指定的订阅项下看到 Visio 计划 2，请与你的管理员联系以获取帮助。如果你是 Microsoft 365 管理员，请了解如何为用户分配许可证。

There are a few common scenarios in which Windows running on a PC might be discovered to be non-genuine during validation. Repairs. If your PC has been repaired, you might start to see messages on your desktop that Windows isn't genuine.

Reinstall OneDrive for Windows. The OneDrive app comes with Windows 8.1 and Windows RT 8.1 and cannot be uninstalled, but you can uninstall OneDrive from Windows 7, Windows Vista and some versions of Windows 10.

Tip: If you believe someone has acquired your payment info, contact your bank or your payment provider to prevent more charges. Tell them your credit card has been stolen or compromised - If you only dispute the charges, there's nothing to prevent the fraudulent charges from happening again.