There are hardly any keyboard enthusiasts who do not use a mouse at all. However, there are situations when the mouse suddenly breaks down, and you need to finish the work you have started, or at least turn off the computer correctly. For this purpose, you can successfully use computer keyboard control. With its help, all the basic actions for which the mouse was usually used are easily performed.
Keys for basic actions
How to open the desktop
How to open the start menu
How to use the keyboard to control the cursor
How to open Task Manager
Keys for basic actions
You can move the mouse cursor on the screen in four directions: up, down, right, left using the arrow keys on the keyboard. 
By pressing the Enter key, you can answer in the affirmative in dialog boxes. For example, answering yes to the question whether you want to save changes to the file. In general, with this key you press the button that is marked active by default in the dialog box.
The Spacebar can be used to scroll through the contents of a window and can be used to enable or disable various options. For example, in the System Settings window.
The Tab key allows you to move from one element to another. For example, move between input form fields, such as entering a username and password, and so on.
The keyboard shortcut allows you to move the cursor in reverse when entering data in forms. In general, combining this key with other control keys allows you to use their additional functions.
The Ctrl key is one of the frequently used keys in the operating system. It is usually used in combination with other keys. For example, Ctrl+C or Ctrl+V when copying and pasting text.
The Windows key opens the Start menu. Using the Win + D combination, you can quickly open the desktop from the active application window, and by pressing this combination again, return to its original position. Win+E opens File Explorer.
The Menu key allows you to open the menu for the selected item, as well as navigate using the arrow keys.
The Page Up and Page Down keys scroll the contents of the screen one page forward or backward (up or down).
How to open the desktop
Imagine the situation: you are working on a computer, you have several windows of various programs open, and at this time the mouse breaks. How to minimize all programs and go to the desktop? To do this, just press the key combination Win + D.
Imagine the situation: you are working on a computer, you have several windows of various programs open, and at this time the mouse breaks. How to minimize all programs and go to the desktop? To do this, just press the key combination Win + D.
How to open the start menu
To open the Start menu, simply press the Win key.
You can then move between menu items using the arrow keys. Using the Tab and Enter keys, you can go to the right side of the menu and turn off the computer without using the mouse. 
How to use the keyboard to control the cursor
Moving the cursor using the keyboard is not as convenient as using the mouse, but sometimes this is the only way to solve this problem.
In order to do this, press three keys simultaneously: left Alt and Shift + Num Lock.
After that, a dialog box will appear asking if you want to enable keyboard cursor control.
Press Enter and after that you can move the cursor using the numeric keypad. Keys 2,4,6, and 8 move the cursor, and key 5 is equivalent to left mouse click.
In order to simulate a right-click, you must press the 5 key and minus.
How to open Task Manager
With the help of the task manager, you can remove hung processes or see the computer boot and much more. In order to call the task manager without using the mouse, type the key combination Ctrl + Shift + Esc.
In order for your computer to run smoothly and quickly, do not forget to clean it regularly by removing unnecessary files. PC cleaner will help you clear your computer of temporary and unused files.