If the check box is selected, it uses Excel's Form Controls and you may move or delete it. If it didn't select, the check box uses ActiveX controls and you must use Design Mode to remove it.

How to Convert True-False to Check Boxes in Excel. Microsoft Excel's form controls can turn the Boolean options of a true-false choice into a clickable data-entry option.

In Microsoft Excel, Word orPowerPoint, the Developer tab is an optional tab that allows users to access form controls and other programming type controls such as Macros, Mapping, Add-ins ...