Windows 10. On a PC running Windows 10, select Start > File Explorer, or select File Explorer from the taskbar. Press and hold (or right-click) the MP4 file you want to play, select Open with , and then choose your preferred file player from the list of applications. Play MP4 files in Windows 10 by right-clicking the file and choosing what ...

Here's how: Select Start > Settings > Windows Update and, next to Get the latest updates as soon as they're available, set the toggle to On. Note: Whether you set the toggle to Off or On, you'll still get the regular security updates as usual. The toggle determines how quickly you get the additional non-security updates, fixes, feature updates ...

在Microsoft帐户仪表板上，选择“ 服务 & 订阅 ”，查看所有与此帐户关联的Microsoft产品。. 登录. 找到 Office 产品并选择“ 安装 ”。. 按照提示安装或重新安装桌面应用。. 选择 “安装高级Microsoft 365 应用 ”，并按照提示安装或重新安装桌面应用。. 在“Microsoft 365 ...

Buy Microsoft 365. See plans and pricing. Find Microsoft Forms help and tutorial content. Explore Microsoft Forms training courses, create a survey, share your form, and more.

Here’s how to get started: Go to Office.com. Click PowerPoint. Create a new, blank presentation, start with a template, or open an existing file. When you start with a new, blank presentation, PowerPoint automatically saves it to OneDrive with a default name, such as Presentation 1. To rename your presentation, do the following:

Change your screen saver settings - Microsoft Support. Change your screen saver settings. Windows 10. Select the Start button, then go to Settings > Personalization > Lock screen, and select Screen saver settings. In the Screen Saver Settings window, choose a screen saver from the drop-down list. Change your screen saver settings.

Here's how to activate dark mode: Go to Settings and more > Settings . Select Appearance from the Settings list. Under Customize browser > Theme, use the drop-down list to select Dark. Note: This topic is for the new Microsoft Edge . Get help for the legacy version of Microsoft Edge. How to activate the dark theme and how it works in Microsoft ...

排查未请求的验证码问题. 注意: 如果仍然未收到验证码，可能需要选择其他方法，或等待，直到可以访问列出的手机或电子邮件。. 为了保护你的帐户及其内容，我们的支持代理不允许发送验证码或访问和更改帐户详细信息。. 了解未收到帐户登录验证码时可以 ...

Select Start > Settings > Apps > Default apps. To change the default app, you can do either of the following: Set a default for a file type or link type. In the search bar, enter the file type or link type you want, then select it from the list of results. You can choose which app can open that file or link type. Set defaults for applications.

Avoid and report Microsoft technical support scams. Microsoft will never proactively reach out to you to provide unsolicited PC or technical support. If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your “issue” fixed, it’s better to ...