你可以在 OneDrive 上存储超过300的文件类型。 它们是安全的，可在浏览器、移动应用、Mac 和 Pc 上使用。 无论是否拥有 Office，您都可以与其他人在 Office 文档中进行编辑和共同创作。

Change Internet Explorer settings. There are many changes you can make to customize your browsing experience in Internet Explorer. To view all settings and options, open Internet Explorer on the desktop, select Tools > Internet options.. Reset Internet Explorer settings

Make text bigger on your screen. If the text size feels too small when navigating through Windows, you can make the text bigger. This affects, for example, title bars, menus, and icon texts.

If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide.

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.

使用 PowerPoint 演示者视图进行幻灯片放映，将演讲者备注和幻灯片分别置于不同的计算机上。 在“显示设置”对话框中的“监视器”选项卡上，选择要用于查看演讲者备注的监视器的图标，然后选中“该设备是主显示器”复选框。 如果“该设备是主显示器”复选框已选中且不可用，则表示该监视器 ...

了解如何查找用于激活的 Windows 产品密钥，以及何时改用数字许可证。 如果你在 Microsoft Store 应用中购买了Windows 10或Windows 11 专业版升级，你将在发送确认购买的确认电子邮件中收到数字许可证而不是产品密钥。

4. Exit, and then restart Outlook. If you want to turn off Cached Exchange Mode, repeat the steps, but clear Use Cached Exchange Mode.. By default, 12 months of your email is available offline, but you can control how much mail is kept offline.. Top of page

有时，应用发布者会更新其应用以添加新的功能并修复问题。 Windows 上的 Microsoft Store 可以自动安装应用更新。 选择“开始 ”按钮，然后搜索并选择“ Microsoft Store”。

Issues that are fixed in this update. The following issues are fixed for .NET Framework 4.7.2. SQL Server (SQL) Fixes an issue in which the .NET Framework API SqlConnection.ConnectionString property is used to set a null or empty connection string. In this situation, a Null Reference Exception (NRE) occurs when you use the API together with .NET Framework 4.7.2.