If the Delete key on your keyboard is not working on your Windows 11/10 PC, check the key physically, disable Sticky or Filter keys, remap the key, etc.

If you can't delete a worksheet in your Excel workbook or the Delete Sheet option is greyed out in Excel, follow these fixes.

If the delete button is missing, it’s possible you are working with a To-Do list rather than a Planner plan. To confirm, look for group-related options or icons that indicate collaboration features.