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Dear Gençer,
Thanks for reaching out to Microsoft Q&A forum support.
I understand you are experiencing an issue where checkboxes in your Excel worksheet stop functioning after you protect the sheet. This is a known behavior because form controls like checkboxes are disabled by default when sheet protection is applied unless specific options are enabled.
To resolve this, please follow these steps to ensure checkbox functionality is retained while the sheet is protected:
- Unprotect the Sheet
- Go to the Review tab and click Unprotect Sheet.
- This step is necessary to adjust the protection settings.
- Unlock the Linked Cell (if applicable)
- If your checkbox is linked to a cell, right-click the checkbox and choose Format Control > Control tab to check the linked cell.
- Then, right-click the linked cell, choose Format Cells > Protection, and uncheck “Locked”.
- This ensures the checkbox can update the cell even when the sheet is protected.
- Protect the Sheet with Correct Options
- Go to the Review tab and click Protect Sheet.
- In the dialog box, check “Edit objects” and optionally “Edit scenarios”.
- These options allow interaction with form controls like checkboxes while the sheet is protected.
- Enter a password if needed, then click OK.
- Test the Checkbox
- Click the checkbox to confirm it now works as expected.
This guidance is based on Microsoft’s official documentation:
Protect controls and linked cells on a worksheet
You are unable to select unprotected cells in Excel
Best wishes,
Peter | Microsoft Q&A Support Moderator.