Hi @Suhee Choi ,
Did you mean that you want to uncheck the box’ show this message always’ for this waring windows? If that, please run the Find function again, then the waring windows will appears again, then you can uncheck the box’ show this message always’ for this waring windows. Or you can go to SSMS > Tools >Options Uncheck the ‘Display information message’ box as below screenshot.
If you want the message windows appears, please check the ‘Display information message’ box and ‘Display warning message ‘box in SSMS Tools.
If I misunderstood, please let me known.
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