What are the functions of F1 to F9 on the computer keyboard?

F1: Help If you need help with a selected program, press F1, or if you need help with a program, press Win + F1.

F2: Rename key Select a folder and press F2 to rename the folder.

F5: Refresh key is used to refresh the content of the IE or the current window.

F7: Not useful in Windows, but in DOS you can enter character C.

F8: You can use it to display the boot menu when you start up your computer.

F10: Used to activate the menu in Windwos or the program, pressing Shift+F10 will bring up the context menu. In Windows Media Player, the effect is to quickly increase the volume.

F11: It is possible to make the explorer or IE window full screen.

F12: Doesn't work in windwos, but in word it pops up a save as window.

F1: If you are in a selected program and need help, press F1.

F2: If a file or folder is selected in Explorer, pressing F2 will rename the selected file or folder.

F5: Used to refresh the contents of the window currently in IE or Explorer.

In the DOS window, though, it works.

F8: You can use it to display the boot menu when you start up your computer.

F9: Again it doesn't work in Windows. But in Windows Media Player, it can be used to quickly lower the volume.

1.The general function (fuction) key on the computer keyboard, so the function key is defined as f, there are a total of 12, usually called the f key, and its position is generally at the top of the keyboard.

If you have a fuction key on your computer keyboard, so the function key is defined as f, there are 12 in total, usually called the f key, and its position is usually at the top of the keyboard, in a selected program and you need help, then press the caution f1. If you are not in any program, but in Explorer or on the desktop, press F1 and the Windows helper will appear.

If you're working on a program and want to get help from Windows, you'll need to press Win F1. Press shift+f1 and it will appear"what\'s this?"for help information.

F2: If a file or folder is selected in Explorer, pressing F2 will rename the selected file or folder. f3：

Press F3 in Explorer or on the desktop to see the "Search for Files" window, so if you want to search for files in a folder, you can press the F3 key directly to quickly open the search window, and the search scope has been set to that folder by default. Similarly, when you press it in Windows Media Player, a window that says "Add to ** Library by Sorcero Takaeda Computer by Sorcering the Spine" will appear. f4：

This key is used to open the address bar list in IE, and to close the IE window, you can use the Alt F4 key combination. F5: Used to refresh the contents of the window currently in IE or Explorer.

Doesn't work in windows. In the DOS window, though, it works. f8：

You can use it to display the startup menu when you start up your computer. Some computers can also press this key at the beginning of the computer boot to quickly bring up the boot settings menu, from which you can quickly choose whether to boot on a floppy disk, a CD, or directly with a hard disk, without having to go into the BIOS to modify the boot sequence. In addition, it is possible to accept Microsoft's installation agreement when installing Windows.

F9: Again it doesn't work in Windows. But in Windows Media Player, it can be used to quickly lower the volume.