The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

To find out if an app or program is installed in Windows, select Start > Settings > Apps.

说明如何备份注册表，以便在Windows 10、Windows 8.1、Windows 8或 Windows 7 中损坏注册表时进行还原。

摘要 许多 Internet 网站包含 JavaScript，这是一种在 Web 浏览器上运行的脚本编程语言，可使特定功能在网页上起作用。 如果已在浏览器中禁用 JavaScript，则网页的内容或功能可能会受限制或不可用。 本文介绍了在 Web 浏览器中启用 JavaScript 的步骤。 更多信息 Internet Explorer 允许 Internet 区域中的所有网站 ...

You can create a SmartArt graphic that uses a Venn diagram layout in Excel, Outlook, PowerPoint, and Word. Venn diagrams are ideal for illustrating the similarities and differences between several different groups or concepts. Overview of Venn diagrams A Venn diagram uses overlapping circles to illustrate the similarities, differences, and relationships between concepts, ideas, categories, or ...

Learn how to connect to a Wi-fi network in Windows and manage your current network connections.

開啟 [剪取工具] 選擇 開始 按鈕，輸入 截圖工具，然後從結果中選擇 截圖工具。 您可以使用以下快捷方式更快地使用 Snipping Tool 完成工作： 按 Windows 徽標鍵 + Shift + S 打開截圖工具疊加層以捕獲圖像快照。 按 Windows 徽標鍵 + Shift + R 打開截圖工具疊加層以捕獲視頻剪輯。 按 Print Screen (PrtSc) 獲取整個 ...

Windows Secure Boot certificate expiration Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. This might affect the ability of certain personal and business devices to boot securely if not updated in time. To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance. For details and ...

Windows 11版本 23H2 的汇报 Windows 11是一项服务，这意味着它通过定期软件更新变得更好。 好消息是你通常不需要做任何事情！ 如果启用了自动更新，则只要新的更新可用就会自动下载并安装，因此你不必考虑它。 在本页面的左侧，你将找到针对此版本的 Windows 发布的所有更新。 你还可以找到有关 ...

Excel incorporates Power Query (also called Get & Transform) technology to provide greater capability when importing, refreshing, and authenticating data sources, managing Power Query data sources, and shaping the data into a table that fits your requirements.