New Outlook opening pdf attachment generates application error

[ks1014]

When using the "new" Outlook (1.2025.312.200 (Production) - Client Version: 20250307002.16)
to open a pdf (preview works fine) with Adobe Acrobat DC (64-bit 25.001.20432), it generates this error, that when OK is clicked, proceeds to open the pdf for subsequent use without further issues.

Attempted fixes: Repaired Adobe Acrobat. Changed this setting - Preferences-> Security (Enhanced)-> unchecked the checkbox "Run in AppContainer". No luck.

The same email with pdf attachment works without issue when using Outlook Classic. All other pdfs stored in folders locally, in the cloud, or on network drives open without issue. Seems purely an issue with the new Outlook and Adobe Acrobat. 

Any other suggested things to try, or any news on a fix coming in an update to either Acrobat or Outlook?

[S. S]

Hi @ks1014,

Hope you are doing well. Sorry for the trouble.

Our team is aware of the issue, and working on a fix.

That being said, it would be really helpful if you could help us gather logs from your machine: https://adobe.ly/4l1gBRA. Please make sure Procmon is selected. You can upload logs using this tool and share your Unique log ID with us. 

Look forward to hearing from you.

Regards,
Souvik.

[ks1014]

Thank you for your reply. The unique log ID: b5cfd23e-ab05-4419-a6e9-cdd6143b9452

[S. S]

Hi @ks1014,

Thank you for writing in!

I have forwarded this to the dev team for further investigation and will get back to you once I hear back.

Regards,
Souvik.

[ks1014]

Thank you very much! I hope it helps identify and resolve this issue.

[anne_0980]

I'm also having these issues and adding the registry keys mentioned below did not help.
Log ID:  879cac98-15d3-49ed-ba0b-b08b286bbdfa
and
Log ID: 076a35f2-2afa-4257-87db-2715df164689

[Jennifer31688862edik]

Any updates on a resolution for the issue with application error when opening attachment from outlook?

[stephenc59274753]

One of my users is having the excat same issue. I have uploaded logs.

LOG ID: c5cce373-0fb4-4a3e-9329-b66e8c6eaaff

[NicB5C0E]

Having the same issue

[Kris32667979qien]

I worked with an agent from Adobe and they had me put in some REG keys that fixed the issue for me. I turned it into a GPO push so here's the commands I used for PowerShell

REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\Adobe Acrobat\DC\FeatureLockDown" /v "bPromoteRSBezelFeatureLockdown" /t REG_DWORD /d "1" /f

REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\Adobe Acrobat\DC\FeatureLockDown" /v "bEnableNextActionPaneFeature" /t REG_DWORD /d "0" /f

REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\Adobe Acrobat\DC\FeatureLockDown" /v "bLiveDocsExperiment" /t REG_DWORD /d "0" /f

[stephenc59274753]

That worked!  Thank you!

[ks1014]

I was really hoping these reg additions would solve my coworker's issue, but it did not. Added them and rebooted the PC, no change.

[stephenc5762173]

this worked for a couple of weeks. But then stopped working....

[S. S]

Hi @stephenc5762173,

Hope you are doing well. Sorry for the trouble with Acrobat.

The team is aware of the issue, and working on a fix.

We request your kind understanding and patience while the fix is released.

Regards,
Souvik.

[Jacob_5489]

Has a patch been released for this yet or is this still in the works? 

[derrick_0098]

Hi,

Any solution for this problem? our adobe pro with windows 11 also having this problem. But it works fine in windows 10.

Please update here. I also trying to contact adobe through email, but not able to find adobe support email.

[st278782701]

May 6, 2025 we are still recieving the same error message. is there a update?

[AndrewMan]

Same issue.  Submitted logs with Log ID aa9152dd-eb3d-4706-be8f-e77d834c367a

[brent@highnote]

Same issue here. I've also tried uninstalling/reinstalling Acrobat Pro from the CC app.

[brent@highnote]

This workaround to run in compatabilty mode for Windows 8 fixed it, but I'm not sure if there will be any future issues.

1. Open the Start Menu and search for Adobe Acrobat.
2. Right-click on Adobe Acrobat and select Open file location.
3. Right-click on Adobe Acrobat (shortcut or executable file) and select Properties.
4. Navigate to the Compatibility tab.
5. Check the box for Run this program in compatibility mode for: and select Windows 8 from the dropdown.
6. Click OK and restart Adobe Acrobat.

[brent@highnote]

I couldn't deal with the compatability mode anymore so I turned it off, however I also learned that using the old version of Outlook also "fixed" the issue. There's a lot of hate around Outlook 365 so maybe this is a better workaround.

[S. S]

Hi brent@highnote,

Hope you are doing well. 

Thanks for sharing your observations.

There is a known limitation with Microsoft, and they do not have a defined pathway to improve the experience with the new version of Outlook.

That being said, we are working on our side to get the Acrobat's side of the issue fixed.

Your kind understanding and patience is highly appreciated.

Regards,
Souvik.

[theresa_8563]

I am having the same issues since updating to Windows 11. Any update as to when this will be fixed?

[rob_8702]

Same issue, New outlook, error comes up only if adobe is not already open.

I cannot figure it out. Reg keys only worked once.

Also is everyone else having the issues only if it is adobe standard, or pro, But not the free version?

[endpointguy]

Also having this issue. I see the last update from Adobe was in August, any updates on this?