Hello,
I’ve found this behavior quite common in Windows 11, especially after an upgrade, its sometimes misinterprets the default display settings causing desktop icons to appear on the wrong screen even when an external monitor is set as the main display.
In this case, you can try the troubleshooting steps below to see if they resolve the issue.
Step 1: Verify display settings
Right-click on the desktop and select Display settings.
Ensure Display 3 is set as the Main display (check the box "Make this my main display").
Arrange the monitors in the display layout to match their physical positioning (e.g., if Display 3 is on the left, drag it to the left in the settings).
Step 2: Reset icon layout
Windows often retains icon positions based on previous display configurations. To refresh this:
Temporarily disable Display 1 (your laptop screen) in Display settings.
Verify that all desktop icons move to Display 3.
Reenable Display 1. This should help Windows prioritize Display 3 for icon placement.
Step 3: Restart to apply changes
After adjusting these settings, log out or restart your PC to ensure Windows applies the changes correctly.
Hope this helps!