What is the use of Function keys on your system; F1 to F12 shortcut keys use in windows?
PC and laptop keyboard comes with a set ofFunction Keyswhich cater to special functions.
These Function Keys running from F1 through to F12 help you use shortcuts and special functions.
Almost all programs instantly bring up the help or support menu if you press F1.
In Windows, pressing Windows key with F1 will bring you the Microsofts universal Windows Help and Support.
F2
F2 is considered as an edit key universally.
The combination of Alt + Ctrl + F2 opens the Documents Library while on MS Office suite.
F3
F3 lets you search specific files and folders in Window Explorer.
In the command prompt (MS-Dos), pressing F3 repeats the last command line.
F4
F4 is known as the great escape key.
Pressing Alt + F4 immediately closes the current program without saving the same.
In Windows Explorer, F4 takes the focus or cursor to address bar.
It does the same on all Microsoft Internet Explorer browsers including Edge.
F5
F5 is the most popular among Internet surfers because it refreshes the online window content.
It also performs a similar action in Windows Explorer.
However, a few users know that pressing Ctrl+F5 will hard refresh a surfing app webpage.
This means that the content will be reloaded from the server instead of the online window cache.
It can also be used to bring focuses on the address bar on most browsers.
In Microsoft Office programs, it toggles between the menu items and workspace.
This feature places a moveable cursor in web pages, allowing you to select text with the keyboard.
F9
If you are a programmer you would know that F9 is used in Integrated Development Environments.
Ctrl+F9 will compile and launch the code.
F10
F10 shows the Menu bar in Firefox and IE or highlights the same on most programs.
Pressing the combination of Shift + F10 is equivalent to right-click and pops out the context menu.
F11
Pressing F11 opens full-screen mode in Windows Explorer and all browsers including Google Chrome.
Pressing Ctrl + Shift + F12 is equivalent to Ctrl + P on MS Office.
Also Read-Undo/Redo Shortcut Key
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source: www.techworm.net