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Gareth_Williams
Inspiring
Oct 26, 2025 2:30 PM UTC
Open for Voting

Dreamweaver Not Opening?

Hi everybody, my copy of Dreamweaver, (2021), as stopped working. This started yesterday. When I open it, it never opens! It just stops responding and you just have to force quit the application. Is this version out of date or is there some other reason for the issue? Thanks for your help.

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15 replies

bonnieg92385028
Participant
Oct 4, 2026 1:02 AM UTC

I can’t open DreamWeaver 2021 on my Mac. The message says Dreamweaver “is damaged and can’t be opened. This file was downloaded on an unknown date”  I twice uninstalled it and reinstalled it but kept getting the same message. 

Also the Creative Cloud home page says “No Internet Connection” although I have an internet connection from other pages,

 

HELP!

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Nancy OShea
Community Expert
Community Expert
Oct 5, 2026 8:49 PM UTC

You may need to update your Creative Cloud Desktop app. 

  1. Open CC desktop app, go to Help in the top menu, and select Check for updates.
  2. Follow any on-screen prompts to install the newest version if one is available. 
  3. If you cannot install the update, you can download the latest installer directly from the Adobe Creative Cloud Download Page. 
    https://helpx.adobe.com/download-install/apps/download-install-apps/creative-cloud-apps/download-creative-cloud-desktop-app-from-web.html

Post back if you need more help.

 

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Nancy O'Shea— Product User & Community Expert
bonnieg92385028
Participant
Oct 6, 2026 12:38 AM UTC

I uninstalled and installed the CC desktop app, but still could not open DreamWeaver (I got the message 

““Adobe Dreamweaver 2021” is damaged and can’t be opened.

This file was downloaded on an unknown date.”

So I uninstalled and installed the Dreamweaver  app, and still got the same message.

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mark@headTrix
Community Expert
Community Expert
Sep 28, 2026 3:39 AM UTC

Dreamweaver will not open for me! I guess this is the end of life…. it quits all the time… and now it won’t even open.

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headTrix, Inc. | Adobe & AI Training & Consulting
Gareth_Williams
Inspiring
Oct 30, 2025 4:59 PM UTC

This issue has been fixed now. The procedure involved updating the OS so I have marked that as correct. I’m not totally sure if that was the only issue but it probably was! Anyway, I updated from Monterey 12.2.1 to 12.7.6 and installed the latest version of DW and now it works! 🙂

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Gareth_Williams
Inspiring
Oct 30, 2025 11:06 AM UTC

I had a Teams and Zoom meeting with Nayan Kankariya from Adobe today and he said to install the latest update to the Mac OS, which I did. I still have Monterey 12.7.6 but now DW works. I don’t know why!

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Gareth_Williams
Inspiring
Oct 28, 2025 6:03 PM UTC

Thanks Nancy, I’ll try that as soon as I can and update the post with the results. I’ve got a pretty fully work schedule tonight and tomorrow but should get time to have a look at it on Thursday! 🙂

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Nancy OShea
Community Expert
Community Expert
Oct 27, 2025 8:04 PM UTC

Did you receive a recent OS update?

Try launching DW as Administrator. 

Win: Right-click on icon, select More Options, Run as Administrator.

 

Failing that, try Restore Preferences.

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

 

 

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Nancy O'Shea— Product User & Community Expert
Community Expert
Oct 27, 2025 5:14 PM UTC
quote

Hi everybody, my copy of Dreamweaver, (2021), as stopped working. This started yesterday. When I open it, it never opens! It just stops responding and you just have to force quit the application. Is this version out of date or is there some other reason for the issue? Thanks for your help.


By @Gareth_Williams

 

Has anything else changed on your computer? Also the latest version of Monterey is 12.7.6. Have you tried updating to a later version of Mac OS to see if the issue resolves? 

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Gareth_Williams
Inspiring
Oct 26, 2025 6:28 PM UTC

I’m on Mac OS Monterey 12.2.1

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