PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC. How to open PC Health Check.

详细了解有关 Windows 10 版本 21H2 的更新，包括改进和修复、任何已知问题以及如何获取更新。

Windows 10, versions 1903 and 1909 share a common core operating system and an identical set of system files. As a result, the new features in Windows 10, version 1909 were included in the recent monthly quality update for Windows 10, version 1903 (released October 8, 2019), but are currently in a dormant state.

自Windows 8.1发布以来，硬件和软件有了很大的改进，如今的计算机速度更快、功能更强大、更安全。 查看Windows 11电脑. 在当前电脑上安装Windows 11 - 还可以查看当前电脑是否符合 Windows 11的最低系统要求。 运行Windows 8.1的电脑不太可能满足这些要求，但如果满足这些要求，则可以购买和下载 完整版Windows 11 家庭版 或 Windows 11 专业版 或从零售商处购买。 如果你确实选择此路径，请注意，你将需要重新安装应用 (在某些情况下，可能需要) 更新的版本，并采取措施转换文件、数据和设置，因为安装将覆盖现有存储驱动器的内容。 首先升级到Windows 10 () 查看下一个选项，然后升级到Windows 11可能更容易。

了解文件扩展名是什么、Windows 中有哪些常见的扩展名，以及如何在“文件资源管理器”中查看它们。

如果你有一个 Xbox Series X 主机和一个支持 HDMI 2.1 的电视，请了解如何以 120 Hz 启用4K 游戏。

To make your macros available every time you open Excel, you can create them in a workbook called Personal.xlsb. That’s a hidden workbook stored on your computer, which opens in the background every time you open Excel. Macros and VBA tools can be found on the Developer tab, which is hidden by default, so the first step is to enable it.

For information on basic system requirements and additional requirements for specific features, see Find Windows 11 specs, features, and computer requirements. Was this information helpful? Your PC can run Windows 11 if it meets minimum system requirements.

Some Windows 11 devices have a SIM card or eSIM in them that lets you connect to a cellular data network, so you can get online in more places by using a cellular signal.

You can customize keyboard shortcuts (or shortcut keys) by assigning them to a command, macro, font, style, or frequently used symbol. You can also remove keyboard shortcuts. You can assign or remove keyboard shortcuts by using a mouse or just the keyboard. Go to File > Options > Customize Ribbon.