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What is F9 key used for?

The F9 key is used for many different purposes depending on the program or application being used. It can be used to trigger a variety of functions, such as running macros, refreshing data, previewing and printing documents, opening windows, and much more.

It is especially useful in Microsoft Excel, where it allows users to quickly recalculate all of the formulas in a spreadsheet. This is invaluable when dealing with complex calculations that involve changing data in one cell and having the entire sheet adjust accordingly.

In other programs, the F9 key may open a search menu, start a slideshow or presentation, or even reboot a computer. It is also often used as a shortcut for launching a system-wide help menu.

Regardless of the application, the F9 key is a great time-saver. By learning the functions it triggers in your most commonly used programs, you can perform tasks faster and more efficiently.

What are the 20 shortcut keys?

Shortcut keys can make your life easier if you use the right ones. Whether you are a student, a business professional or an avid PC gamer, learning shortcut keys to often-used computer commands can help you save time and be more productive.

Here is a list of 20 shortcut keys that can help make your day-to-day computing tasks easier:

1. Ctrl + C — Copy. 2. Ctrl + X — Cut. 3. Ctrl + V — Paste. 4. Ctrl + Z — Undo. 5. Ctrl + Y — Redo. 6. Ctrl + A — Select all. 7. Ctrl + F — Find. 8. Alt + Tab — Switch between open applications. 9. Ctrl + D — Delete selected item. 10. Ctrl + P — Print. 11. Ctrl + S — Save. 12. Ctrl + N — Create new document. 13. Ctrl + O — Open document. 14. Ctrl + Alt + Del — Open task manager. 15. Shift + Delete — Delete permanently. 16. F11 — Enter/Exit full-screen mode. 17. Alt + F4 — Close window. 18. Alt + Esc — Cycle through open programs. 19. F2 — Rename selected item. 20. F5 — Refresh window.

Using shortcut keys is a great way to save time and effort when using a computer. If you are looking for ways to boost your productivity, consider learning and using these shortcut keys to make your workday smoother and more efficient.

What is the Fn lock key?

Most laptop keyboards have an Fn (Function) key that allows you to use the secondary functions of keys. As its name suggests, the Fn lock key works like a switch and enables you to use the primary functions of the keys without pressing the Fn key each time. Depending on the laptop manufacturer, the Fn lock key can be a single or combination of keys.

The Fn lock key is especially useful for situations when you need to access the primary functions of keys, such as media playback and volume control, often. It can also be helpful in gaming scenarios, where several common tasks are assigned to the keys that would otherwise require the pressing of the Fn key.

Using the Fn lock key is simple. Generally all you need to do is press and hold the Fn key and then press the appropriate function key to enable or disable the locks. You may need to press and hold the Fn lock key for a few seconds to activate the switch. Your laptop’s manual should provide detailed instructions on how to enable and disable the Fn lock key.

As an added bonus, the Fn lock key can also be used to instantly access the default laptop settings and adjust the brightness, audio levels and other laptop settings. This can be done by pressing a special combination of keys—the Fn lock key plus the corresponding number keys. The specific combination depends on the laptop model and manufacturer.

What is F1 f2 f3 f4 f5 f6 f7 f8 F9 f10 f11 F12?

F1 to F12 refer to the function keys located on the top row of most computer keyboards. They are used to perform various tasks depending on the application or operating system being used.

Function keys are used to access special features and functions within an application, such as displaying help, open and save files, and controlling volume and display preferences. In some programs, they can be used to trigger certain macros and shortcuts or activate certain features in the program. For example, in Microsoft Word, pressing F7 will run a spell check and grammar check of the entire document.

In most operating systems, pressing F1 on the keyboard will bring up a help menu with information about how to use the program. Similarly, pressing F2 may bring up a search box, allowing the user to quickly find information related to the current task at hand.

Function keys can also be used to access quick tools or settings menus. For example, in Google Chrome, pressing F12 will bring up the developer tools overlay which allows for debugging and analyzing the performance of web pages. Additionally, pressing F4 in Windows will bring up a list of recently used applications, allowing the user to quickly switch between programs.

Most modern keyboards allow users to customize the actions of specific function keys to make them more suitable for their own workflow. By doing this, users can make the most out of the available function keys and get the most out of their keyboard.

How do you undo F9 in a formula?

If you have used F9 to evaluate a formula in Excel, you can undo it by pressing the undo button or pressing Ctrl + Z. This will restore the formula to the original state before F9 was used.

When working with formulas in Excel, it can be useful to use F9 to evaluate the formula and get an immediate result. However, once you have used F9 to evaluate the formula, it can be difficult to change back to its previous state if you need to make changes. In these cases, using the keyboard shortcut for undo (Ctrl + Z) or clicking the undo button is the best way of reverting the formula to its original state.