If you can't find Internet Explorer on your device, you'll need to add it as a feature. Select Start > Search , and enter Windows features. Select Turn Windows features on or off from the results and make sure the box next to Internet Explorer 11 is selected. Select OK, and restart your device. Internet Explorer 11 support ended on June 15, 2022.

VLOOKUP 第一个参数是要查找的值。. 此参数可以是单元格引用，也可以是固定值，例如“smith”或 21,000。. 第二个参数是单元格搜索范围 C2-:E7，VLOOKUP 在其中搜索要查找的值。. 第三个参数是单元格范围内包含所查找值的列。. 第四个参数可选。. 输入 True 或 False ...

Open Device Manager. In the search box on the taskbar, type device manager, then select Device Manager from the menu.

Here’s how: Check in quick settings: Select the Network, Sound, or Battery icons ( ) on the right side of the taskbar, look for the Bluetooth quick setting, then select Bluetooth to turn it on. You’ll see “Not connected” if your Windows 11 device isn’t connected to any Bluetooth accessories. Check in Settings: Select Start > Settings ...

打开截图工具并获取屏幕截图. 按 Windows 徽标键 ‌+ Shift + S 。. 选择屏幕截图的区域时，桌面将变暗。. 默认情况下，选择“ 矩形模式 ”。. 可以通过在工具栏中选择以下选项之一来更改截图的形状：“矩形模式”、“窗口模式”、“全屏模式”和“任意格式 ...

A scanner you've connected using a wired, wireless, or network connection. An app for scanning files, such as Windows Scan, available for free from Microsoft Store. The Windows Scan app can help you scan pictures or documents and save them to your PC as JPEG, bitmap, or PNG files. For more info, see Install and use a scanner in Windows.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

双击页眉或页脚区域以打开 “页眉 & 页脚 ”选项卡。. 选择“ 链接到上一个” 以关闭各部分之间的链接。. 选择 “删除页眉”或“删除页脚 ”。. 添加或更改页眉或页脚中的内容。. (如果要删除或更改页眉和页脚，则需要重复步骤 3-5。. 若要返回到文档正文 ...

检查蓝牙设备. 确保蓝牙设备已打开、已充电或具有新电池，并且位于电脑的连接范围内。. 然后尝试执行以下操作：. 关闭你的蓝牙设备，等待几秒钟，然后将其重新打开。. 确保你的蓝牙设备位于有效范围内。. 如果你的蓝牙设备无响应或响应迟缓，请检查以 ...

The new Microsoft Edge is based on Chromium and was released on January 15, 2020. It is compatible with all supported versions of Windows, and macOS. With speed, performance, best in class compatibility for websites and extensions, and built-in privacy and security features, it's the only browser you'll ever need. Try the new Microsoft Edge now.