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February 22, 2026
Answered

“Adobe Dreamweaver 2021.app” is damaged and can’t be opened. This file was downloaded on an unknown date.

  • February 22, 2026
  • 1 reply
  • 68 views

Dreamweaver suddenly stopped opening on Sequoia 15.6
Getting message: “Adobe Dreamweaver 2021.app” is damaged and can’t be opened. This file was downloaded on an unknown date.”

    Correct answer Nancy OShea

    Try Restoring Preferences. And restart your computer. 

    https://helpx.adobe.com/dreamweaver/kb/restore-preferences-dreamweaver.html

     

    1 reply

    Nancy OShea
    Community Expert
    Nancy OSheaCommunity ExpertCorrect answer
    Community Expert
    February 23, 2026

    Try Restoring Preferences. And restart your computer. 

    https://helpx.adobe.com/dreamweaver/kb/restore-preferences-dreamweaver.html

     

    Nancy O'Shea— Product User & Community Expert