Article in English: Click the Windows logo in the bottom-left corner of the screen. Click the gear-shaped icon in the lower-left side of the Start window. It's a screen-shaped icon in the upper-left side of the Settings window. This tab is in the top-left corner of the window. You'll find it near the middle of the Settings window. Doing so prompts a drop-down menu. In the resulting drop-down box, click a percentage which pertains to the amount you want to zoom in.  The lowest size you can choose is 100%. Some text won't be changed until you restart your computer. Magnifier is a feature which allows you to zoom in to view items on your screen without having to change other settings:  Press ⊞ Win++ to bring up Magnifier (you can also type magnifier into Start and then click Magnifier to open it). Click - to zoom out to a maximum of 100%. Click + to zoom in to a maximum of 1600%. Place the cursor in one of the screen's corners to pan across the screen.

Summary in Vietnamese:
Mở Start. Mở phần cài đặt Settings. Nhấp vào System (Hệ thống). Nhấp vào thẻ Display (Hiển thị) ở góc trên bên trái cửa sổ. Nhấp vào khung thả xuống "Change the size of text, apps, and other items" (Đổi kích thước văn bản, ứng dụng và mục khác). Nhấp vào một kích thước. Bạn nên cân nhắc việc sử dụng Magnifier.