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.

如果你在下载和安装 Windows 更新时收到错误代码，更新疑难解答可以帮助解决该问题。 选择“开始 ”>“设置> ”>“更新和安全 ”>“疑难解答”>“其他疑难解答”。 接下来，在“启动并运行”下，选择“Windows 更新” > “运行疑难解答”。 运行完疑难解答后，最好重启设备。

To get someone's attention in a channel conversation or a chat, @mention them. Just type @ before their name and then select them from the menu that appears.. When an @mention recipient receives a notification, selecting it takes them directly to the point in the conversation where they were mentioned.

Add members to a shared channel. When creating a shared channel, the default setting is Share this channel with everyone on the team.. After you've chosen Shared channel as the channel type in the selection box, type the names of the people in your org you want to add to the channel and select from the list.

Here are a few different ways to find help for Windows. Search for help - Enter a question or keywords in the search box on the taskbar to find apps, files, settings, and get help from the web.

使用本文来查明到期状态。 查看“服务和订阅”标题下的详细信息。 如果看到圆圈箭头，那么订阅设置为周期性帐单，除非关闭周期性帐单或提前将其取消。 “下一次收费”信息将显示下一次收费时间以及将收取的费用。

Apply recommended actions. In the Accessibility pane, you'll see a list of errors and warnings, with how-to-fix recommendations for each.. To quickly correct the issues, apply one of the recommended actions. For more information on how the findings are categorized, see Rules for the Accessibility Checker. In the Accessibility pane, select an issue under Warnings or Errors.

OneDrive 存储 中包括哪些内容？ OneDrive 存储配额适用于个人 Microsoft 帐户，包括： OneDrive 文件和照片，例如： 从计算机或移动设备存储、上传和同步的个人文件，例如 Office 文档、移动相机胶卷、屏幕截图和其他已保存到 OneDrive 的文件和照片，包括桌面、文档和图片文件夹。

提示: 如果你最近在 Microsoft Store、零售店或在线购物，还可以查看有关你在 Microsoft 购物中获得的积分的详细信息。登录到你的 Microsoft 帐户，并查看商店&赚取历史记录。 请注意，如果你在 18 个月内未赚取或兑换任何内容，Microsoft Rewards 积分将过期。

1. In Teams, select the channel page. To the right of the channel name, select the + on the tab bar.. 2. Select the SharePoint tab.. 3. Select the Document libraries to see existing SharePoint lists available from your team site. You can also pick a document library from Recommended section SharePoint content to add as a tab in the Teams channel.