Remove the Select All option in slicer selection
Overview
When a slicer uses a column with high cardinality, and users do not need to select all values at once, it is recommended to remove the “Select All” option from the slicer settings in Power BI.
To remove this option from the slicer settings in Power BI, follow these steps:
Select the slicer visual in the report. Once selected, the Slicer Settings option will appear in the Visualizations pane.
Click the Visual tab and go to Slicer Settings and expand the Selection section.
Locate the Show “Select all” option setting in the Selection section.
Toggle off this option to remove the Select All option from the slicer.
You can also apply this change to multiple slicers at once:
Press and hold the Ctrl key.
Select all the slicer visuals in the report.
Follow the same steps above to disable the “Select All” option for all selected slicers.