Adobe reader stop working Error (523:523)

[björnm48604619]

Adobe reader stop working Error (523: 523)

get this error with the new version 15.023.20053 with the older version 15.020.20039 it works.

I use Adobe Reader in our programs and have hundreds of users who have this problem now and need to turn off the automatic upgrade in a simple way.

[Adorobat]

Hi björnm48604619,

Could you please try to disable protected mode as described in the following link:

Protected Mode troubleshooting | Adobe Reader

[Guest]

Hi Adorobat,

We are experiencing a similar issue with the new release (2015.023.20053). We get the Adobe Reader error 523 when we open embedded pdf files in the internet explorer and try to navigate to another page. The page becomes very unresponsive and slow.

So far we found three workarounds:

1. Uninstall the new version and install the old version 2015.020.20039

2. Disable the "protected mode" in the properties of Adobe Reader

3. Use another web browser

Hopefully that will be fixed in a new version soon since non of those workarounds is a good solution for us.

[björnm48604619]

Hi

I installed the new version 2015.023.20056 and still have the same problem Error 523:523.

I can quickly open a PDF document, but it takes about 15 sekuner to close it.

When I use ver.2015.020.20039 everything works perfectly but the problem is that I can not turn off the automatic upgrade.

Have tried with and without protected mode.

I use Windows 10 64 bit.

[Adorobat]

Hi björnm48604619,

Could you please try below mentioned steps and see if that helps:

Run Cleaner tool which can be downloaded from this link: Download Adobe Reader and Acrobat Cleaner Tool - Adobe Labs  ,

Restart the computer.

Install Reader DC from here: Adobe - Adobe Acrobat Reader DC Distribution

You may refer to the following link on how to disable automatic updates in Reader:

Disable automatic updates in Adobe Reader DC?

[björnm48604619]

Hi

I had help with this problem and it works.

1    Open the registry editor> Create a registry key in HKCU:  SOFTWARE\\Adobe\\Acrobat Reader\\EmbeddedPDFFeatTestEx

2     Create a dword in that key with name nEmbeddedPDFFeatTestEx and set its value to 1 and see if problem goes away

3    Set the dword value to 0 and see if the problem comes back.

[Guest]

I'm having the same issue which started with 2015.023.20053 and have since upgraded to 2015.023.20056 and are still experiencing the problem.

@björnm48604619 - do you know what that registry setting accomplishes?

[Adorobat]

Hi björnm48604619,

Sorry for the delay in response.

Could you please try disabling protected mode and see if that helps:

Launch Reader>click Edit>Preferences>Security(Enhanced)>uncheck the box Enable Protected Mode at startup>OK

Relaunch Reader.

Please note: Disabling Protected is only for the troubleshooting purpose. Please enable the feature after troubleshooting is complete.

Let me know the results.

Thank You,

Shivam

[AshuMittal]

Hi RyanPEMCO​ @björnm48604619

We've released an update that addresses the browser related slowness issues with PDFs. This update will be automatically pushed to all existing installations of Reader.

If you'd like to apply this update immediately, please open Reader and visit Help > Check for Updates.

More details about the release are here: Release notes | Acrobat DC, Acrobat Reader DC | Update, February 16, 2017

Please let me know if you still face any issues.

Thanks,

-ashu