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。

Learn how to log in to Microsoft Teams with your Microsoft 365 account. This step-by-step guide from Microsoft Support walks you through the process of accessing Teams on desktop, web, and mobile devices.

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Default Office theme colors. The color palette of the Office theme prioritizes the creation of modern and accessible content. The previous Office theme has been renamed Office Theme 2013–2022 and can still be accessed in the theme galleries of each Office application.. Change a theme and make it the default in Word or Excel

The Windows 10 free upgrade offer ended on July 29, 2016. To upgrade to Windows 10, you will need to have a compatible PC and purchase a full version of the software.We recommend that you don’t install Windows 10 on an older device, as some Windows 7 devices are not compatible with Windows 10 or could experience reduced feature availability.

Here’s how to reinstall Microsoft Edge whether you’re a Windows or Mac user: Open any working browser. (Note: If you’re a Windows user and your Microsoft Edge is not currently functioning, to open Internet Explorer, type IE in the search box on the taskbar and then select Internet Explorer from the results.Or press the Windows logo key on your keyboard and then type IE in the search bar.)

What is a Microsoft account used for? You need a Microsoft account to sign in to your Windows pc, Xbox console, or any of Microsoft’s products and services, including Office, Outlook.com, OneDrive, Xbox Live, Microsoft 365, Family Safety, Skype, Bing, Microsoft Store and MSN.

Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

Smart App Control adds significant protection from new and emerging threats by blocking apps that are malicious or untrusted. Smart App Control also helps to block potentially unwanted apps, which are apps that may cause your device to run slowly, display unexpected ads, offer extra software you didn't want, or do other things you don't expect.

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