Note: The Automatically save passwords setting has been retired with Microsoft Edge version 124 and later. Instead, Edge will offer to save your passwords each time you enter new credentials in the Edge browser. All your previously autosaved passwords will continue to be available for a seamless login.

Important: you should limit the number of administrators on your Windows device because administrators have complete control over the system.Administrators can change settings, install software, and access all files. If too many people have this level of access, it could lead to security risks like malware installation or unwanted changes to your system.

Select the Start button, then type settings.Select Settings > System > Display, and choose a screen orientation from the drop-down list next to Display orientation. Change screen orientation

In the search box on the taskbar, type Create a restore point, and select it from the list of results.

Important: Section breaks are different from page breaks.If you already have a page break before the page where you want to change the header or footer, remove a page break and replace it with a section break as shown below.

Tip: If you installed the Microsoft 365 apps as part of a suite, such as Office Home and Student or Microsoft 365, search for the suite name.For stand-alone apps search by the app name, such as Project or Visio. In most cases you can't uninstall an individual app if it's included in your Microsoft 365 suite.

Important: You won't lose files or data by resetting OneDrive on your computer.Resetting OneDrive only disconnects all your sync connections (including personal and work or school).

如果某个严重问题导致 Windows 意外关闭或重启，则会出现蓝屏错误（有时也称为黑屏错误或终止代码错误）。 你可能会看到一条消息，指出“Windows 已关闭，以防止损坏你的计算机”或类似消息。

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.

但如果需要测试多个条件，例如我们假设所有条件都需要为 True 或 False (AND)，或只有一个条件需要为 True 或 False (OR)，或者如果想要检查某个条件是否不 (NOT) 符合你的条件，这时该怎么做呢？这三个函数均可以单独使用，但它们更常见于与 IF 函数成对使用。