Acrobat Pro DC 15.006 will not read smart card

[bobsnarlie]

Hello family!

I am having a major issue with our Adobe Acrobat Pro DC! We are unable to sign any documents with our smart card. It does not recognize that there is a smart card plugged in at all. I have tried the trusted certificates, i have attempted to remove security (it's greyed out due to policy). We just got on windows 1709 win10 image and are struggling to get this resolved.

Here is the error:

The Windows Cryptographic Service Provider reported an error:

A device attached to the system is not functioning.

Error Code:31

We have tried several smart card readers, tried changing the certs. Nothing is working. I did notice that the certificate I normally use has a yellow exlamation mark but even when selecting a good certificate and go to sign the document it does not see any cards in the reader.

Thoughts?

[bobsnarlie]

Also, it is only happening on Virtual Machines not Physicals

[adrianl1062377]

We were having a similar issue on our VDIs with Win 10 v1709, issue turned out to be Windows Defender Exploit Protection security setting. The settings applied are as follows:

<AppConfig Executable="Acrobat.exe">

    <DEP Enable="true" EmulateAtlThunks="false" />

    <ASLR ForceRelocateImages="true" RequireInfo="false" BottomUp="true" HighEntropy="false" />

    <Payload EnableExportAddressFilter="true" EnableExportAddressFilterPlus="true" EnableImportAddressFilter="true" EnableRopStackPivot="true" EnableRopCallerCheck="true" EnableRopSimExec="true" />

  </AppConfig>

  <AppConfig Executable="AcroRd32.exe">

    <DEP Enable="true" EmulateAtlThunks="false" />

    <ASLR ForceRelocateImages="true" RequireInfo="false" BottomUp="true" HighEntropy="false" />

    <Payload EnableExportAddressFilter="true" EnableExportAddressFilterPlus="true" EnableImportAddressFilter="true" EnableRopStackPivot="true" EnableRopCallerCheck="true" EnableRopSimExec="true" />

  </AppConfig>

If you do not apply the setting or apply the following Windows Defender Exploit Protection settings then uninstall/re-install the Adobe application issue is resolved:

<AppConfig Executable="Acrobat.exe">

    <DEP Enable="true" EmulateAtlThunks="false" />

  </AppConfig>

<AppConfig Executable="AcroRd32.exe">

    <DEP Enable="true" EmulateAtlThunks="false" />

  </AppConfig>