Your desktop icons may be hidden. To view them, right-click (or press and hold) the desktop, select View, and select Show desktop icons. To add icons to your desktop such as This PC, Recycle Bin and more:
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Select Start > Settings > Personalization > Themes > Desktop icon settings.
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Under Desktop Icons, check the boxes next to the icons you would like to have appeared on your desktop.
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Select Apply and OK.
Source:
Microsoft Documentation: https://support.microsoft.com/en-in/help/4027090/windows-10-show-desktop-icons