Excel keeps prompting that the reference is invalid. Solution: First press the keyboard shortcut [ctrl alt delete] to open the task manager; then select the excel process and click the End Task button; finally right-click the window and select Close Task Manager.

The operating environment of this article: Windows 7 system, Microsoft Office Excel 2010 version, Dell G3 computer.

Excel keeps prompting that the reference is invalid Solution:

1. After inserting the control, the design mode cannot be selected and the interface cannot be clicked.

#2. An invalid reference prompt pops up and the software cannot be closed, as shown in the figure below.

#3. At this time, you can press the keyboard shortcut ctrl alt delete to open the task manager.

#4. Select the excel process and click the End Task button.

5. Right-click the window and select Close Task Manager.

#6. Double-click the excel shortcut again to open the software.

#7. As shown in the figure below, the control will be deleted when opened again, and the prompt box will no longer pop up.

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