Learn how to switch Outlook from working offline to online with your mail server on Microsoft Support.

了解如何在电脑上重新安装 Windows，以及安装 Windows 后激活的工作原理。

Here's how to show icons, hide them, or change their size in Windows. To show or hide desktop icons. Right-click (or press and hold) the desktop, point to View, and then select Show desktop icons to add or clear the check mark.

We're committed to delivering continuous innovation by releasing new features and enhancements into Windows 11 more frequently. Windows devices get new functionality at different times as Microsoft delivers non-security updates, fixes, improvements, and enhancements via several servicing technologies—including controlled feature rollout (CFR). ...

Get answers to some basic questions about what two-step verification is, and how to set it up and use it to help keep your Microsoft account more secure.

Use Settings in Windows 10 to change default apps and programs.

Learn how to show hidden files, folders, and drives in Windows.

Learn how to manage extensions in Microsoft Edge, including adding, disabling, or removing them as needed.

There are two ways to open Registry Editor in Windows 10: In the search box on the taskbar, type regedit, then select Registry Editor (Desktop app) from the results.

Make the everyday easier with Windows 11. When there's a lot to do, Windows 11 helps you get it done. With intuitive navigation and new multitasking tools, it brings you the performance you want and the security you need.