Most (not all) users receive "AcroRd32.exe - Application Error" as soon as they open Reader or try to open a PDF. If I expand the details, I see "The Instruction at 0x6d559f7b referenced memory at 0x00000000. The memory could not be read."
This has been happening for a couple of weeks now. We have two RDS Session Hosts, both on 2012R2 Standard. Once a user starts getting this problem, it doesn't matter which Session Host the user logs onto they get the same error. Which makes me think it's something profile related. I tried restoring both VM's back to before the problem started, it seems to work for an hour or so, then starts faulting again. I've even tried restoring the VM then disabling the Adobe Update service before attaching the virtual switch but the same thing happens.
The users are using published Web Apps, but I also see the error when logged directly onto the server via the Hyper-V console.
This is what I see in Event Viewer.
Faulting application name: AcroRd32.exe, version: 19.8.20080.44583, time stamp: 0x5bca51c0
Faulting module name: AcroRd32.dll, version: 19.8.20080.44583, time stamp: 0x5bca51b4
Exception code: 0xc0000005
Fault offset: 0x00989f7b
Faulting process id: 0x2248
Faulting application start time: 0x01d476e62711e889
Faulting application path: C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
Faulting module path: C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.dll
Report Id: 672c6d7a-e2d9-11e8-80ef-00155d6f3901
Faulting package full name:
Faulting package-relative application ID:
As well as restoring the VM we have completely uninstalled, used the Adobe Cleaner Tool and reinstalled on both servers, but the problem persists. Tried turning Protected Mode off, any suggestions would be appreciated.