We are gettting this error consistently when trying to edit a pdf.

Question

Multiple PDF files are open at the time ((about 4 to 5) not counting word, excel and outlook is open and running as well) that we are getting the crash error.  Please see error below:
Faulting application name: Acrobat.exe, version: 11.0.9.29, time stamp: 0x5412b52e
Faulting module name: ntdll.dll, version: 6.1.7601.18247, time stamp: 0x521ea8e7
Exception code: 0xc0000374
Fault offset: 0x000ce753
Faulting process id: 0x1004
Faulting application start time: 0x01cfed55cb30c974
Faulting application path: C:\Program Files (x86)\Adobe\Acrobat 11.0\Acrobat\Acrobat.exe
Faulting module path: C:\Windows\SysWOW64\ntdll.dll
Report Id: b62ebca2-5949-11e4-8d1d-000af72c8b6b
I have updated the version, I have cleared the startup and opened adobe without plugins but then the user loses ability to edit pdf so a test cannot be performed to rule out plugins. 
Not sure what else to try - the system has config is below:
OS Name
Microsoft Windows 7 Professional
Version
6.1.7601 Service Pack 1 Build 7601
Other OS Description
Not Available
OS Manufacturer
Microsoft Corporation
System Name
MTETRAULT3
System Manufacturer
Dell Inc.
System Model
OptiPlex 9020
System Type
x64-based PC
Processor
Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz, 3401 Mhz, 4 Core(s), 8 Logical Processor(s)
BIOS Version/Date
Dell Inc. A07, 4/25/2014
SMBIOS Version
2.7
Windows Directory
C:\Windows
System Directory
C:\Windows\system32
Boot Device
\Device\HarddiskVolume2
Locale
United States
Hardware Abstraction Layer
Version = "6.1.7601.17514"
User Name
APA\mtetrault
Time Zone
Central Daylight Time
Installed Physical Memory (RAM)
16.0 GB
Total Physical Memory
15.9 GB
Available Physical Memory
12.8 GB
Total Virtual Memory
31.9 GB
Available Virtual Memory
28.3 GB
Page File Space
15.9 GB
Page File
C:\pagefile.sys
Thanks Elaine

Answer 1

In Form Central, when I add a field, I select the Add File Attachment icon (see screen shot below - it is the 10th icon from the left, the paperclip over a sheet):
Then it allows me to fill in the field, describing the file to upload, and the properties to the right defining the file size limit, type of file and other properties.  This is all done through formscentral, thus allowing a user in my form to upload a file that is attached to the form when submitted.