As you're getting your Microsoft 365 business subscription set up, you'll want to download and install your Microsoft 365 apps, like Word, Excel, Microsoft Teams, and PowerPoint, on your PC or Mac.

When you first sign into Microsoft Defender on Android, we'll walk you through a few easy steps that start with setting up web protection.During this process, we'll ask you to give Defender permission to do two things: run in the background and use the Accessibility Service.

Microsoft's products and services work best if you use the same language and region across all your devices, and in all of your app and Store settings.

信息类型. 将删除的内容. 存储的内容. 浏览历史记录. 所访问站点的 url，以及每次访问的日期和时间。 在你的设备上（如果打开了同步，则在所有已同步设备上）

Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app:

解决安装 Windows SP1 时遇到的问题. 如果你尝试安装 SP1 并看到指示安装未成功的错误消息，这可能是因为用于安装更新的 Windows 维护服务商店出现问题，或者是因为你的防病毒软件阻止安装更新。

Note: Some cameras won't appear in the Camera settings page.These include infrared (IR) cameras used for Windows Hello Face authentication, cameras using DirectShow technology (like many apps provided by DSLR or action camera manufacturers so their devices can be used as webcams), and proprietary cameras that aren't managed by Windows—such as industrial cameras and many networked cameras.

Select Start > Settings > Personalization.The preview window gives you a sneak peek of your changes as you make them. In Personalize your background, you can select a picture, a solid color, or a slideshow of pictures you create.Or you can choose Windows spotlight to see a new image from around the world every day.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

解决了将文件格式从 .ppt 转换为 .pptx 或 .pptm 的问题. 如果遇到以下任何症状，请按照以下步骤将文件从.ppt转换为.pptx如果 PowerPoint 文件 (.ppt) 包含宏，则可以将它们转换为 .pptm。