The following tutorial will help you to learn how to change the desktop icon spacing, both vertical and horizontal in Windows 10. Desktop icon spacing has a default value for -1125 units for each of horizontal and vertical spacing. This spacing can be changed by tweaking specific keys in the registry Editor. The steps are very simple and you can change the value back to default anytime by applying the same process. The parameter of icon spacing runs from -480 to -2730. So you can select any value within this range.
Steps to Change Desktop Icon Spacing (Horizontal and Vertical) in Windows 10
1. press Windows+R to open Run window, type regedit and hit Enter.
2. Navigate to the following location
3. In the right panel, find out WindowMetrics. This is the horizontal spacing. Double click on IconSpacing to modify the value. Choose any value between -480 to -2730 where -480 represents the minimum spacing and -2780 represents the maximum spacing.
4. Now the vertical spacing is same as step 4. All you need to do is double click on IconVerticalSpacing. Now set any value between -480 to -2730. Tap OK to save changes. The icon spacing is thus changed.
5. Reboot the computer to save the changes.