This guide will show you how to change the language on your computer. The changes will be visible in menus and dialog boxes. You can do this setting on both Windowsand Mac. It should be noted here that changing the default language on your computer does not mean that it will also change in your browser or other programs.
1st way for Windows
1 – Press the Windows menu. Click on the Windows logo in the lower left corner of your screen.
- You can also press the Windows key on your keyboard.
2 – Click on settings. The gear icon is located at the bottom left of your menu.
3 – Select Time & Language. It is located in the center right of your window.
4 – Select region and language. You will find this option on the left side of your window.
5 – Select the language adder. It's next to the large plus sign in the center of the window, just below the "Languages" heading.
6 – Select a language. Click on the language you want to use.
7 – Choose a dialect. If clicking on the language of your choice brings up a window with available dialects, then you can choose the one that suits you.
8 – Click on the language you selected. You will find it under the default language in the “Languages” section. After clicking, more options will appear.
9 – Press the “Options” button. 
10 – Download the available language pack. Click on the “Download” button under the “Download Language Pack” heading.
11 – Press the left arrow. Go back one step by pressing the arrow located in the upper left of your screen.
12 – Select the language you added and click the default button.
13 – Restart your PC. Click on the Windows menu, press the power button and select “Restart”. Once your PC completes this step, your selection will be active.
2nd way for Mac
1 – Open the Apple menu. Click on the Apple logo in the upper left corner of the screen to display a drop-down menu.
2 – Click on System Preferences. This option is near the top of the menu.
3 – Select “Language and region.” It’s a flag icon near the top of the screen.
4 – Click on + . This icon is located at the bottom left of the window that appeared. After clicking on it, a new window will appear with many other languages.
5 – Scroll to find the language of your choice and click “add”.
6 – Click on the “Use language” option. When the above window appears, click the blue button in the lower right corner.
7 – Restart your Mac to complete the process.
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