I faced an issue, that Windows 10 desktop icons width become too large and only one icon was appearing on the screen, I tried every method and option I know in the GUI but it was not fixed, finally the fix was done through the registry key:
HKEY_CURRENT_USER\Control Panel\Desktop\WindowMetrics
I updated the IconSpacing
IconVerticalSpacing
and set them to -1125
then I signed out and signed in again