we are also having the same issue on RDS 2012 R2 Farm, here is the win event log Faulting application name: AcroRd32.exe, version: 19.8.20071.41678, time stamp: 0x5ba32fd4 Faulting module name: ucrtbase.DLL, version: 10.0.14393.2247, time stamp: 0x5adc1a6f Exception code: 0xc0000409 Fault offset: 0x000891eb Faulting process id: 0x822c Faulting application start time: 0x01d45b2bad34497a Faulting application path: C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe Faulting module path: C:\Windows\SYSTEM32\ucrtbase.DLL Report Id: f83cfca1-c71e-11e8-80d8-6eae8b3232ef Faulting package full name: Faulting package-relative application ID:
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