### One, How to Remove the Line in the Word Header
By default, there is a "line" in the header of a Word document. When inserting images into the header, it looks very unappealing. You can use the following method to remove it:
1. Open "View - Header and Footer".
2. Go to "Format - Borders and Shading - Borders - Apply To" and set it to "Paragraph".
Now when you insert an image into the header or footer, the annoying line will be gone.
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### Two, Using the Systeminfo Command to View System Configuration Information
The built-in Windows command `Systeminfo` is used to display detailed configuration information about the computer and its operating system, including OS settings, security information, product ID, hardware attributes, and installed patch information. Its usage method is as follows:
1. In "Start - Run", type "cmd" to open the Command Prompt.
2. Type the command "systeminfo" to display the system configuration list.
3. If you type the command "systeminfo > xxx.txt", the system configuration information will be saved to "C:\Documents and Settings\Your Username\xxx.txt".
For more usage methods of the `Systeminfo` command, please refer to the official Microsoft help documentation or search for relevant information on Baidu.
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### Three, How to Input the Copyright Symbol ©
To input the copyright symbol © in web pages or documents, you can use the following methods:
1. In a document, hold down the Alt key and type "169" on the numeric keypad on the right side, then release the Alt key, and the copyright symbol © will appear. This method works for Windows 2000 or later versions.
2. In the source code of a webpage, typing `©` or `©` will also output the copyright symbol ©.