Press Windows Key + Shift + S to capture the entire screen.
A new window will appear with the screenshot.
Click on the "Save As" option in the screenshot window.
Select a folder to save the image. You can also choose "This PC" to save it directly.
Click "Save" to download the image.
The image will be saved in the selected folder.
Open the folder where you saved the image and check that it exists.
If everything worked, you've successfully taken a screenshot!