We recently installed ArcMap 10.4 in a student lab. When the instructor or students use it, they find that it crashes frequently saying - "An unhandled win32 exception occurred in ArcMap.exe." The crash generally occurs when they select either Geoprocessing or Customize, though it does not happen every time they do so. When ArcMap crashes, an event is produced in the Windows logs.
Event 1000, Application Error
Faulting application name: ArcMap.exe, version: 10.4.0.5524, time stamp: 0x567b1565
Faulting module name: ntdll.dll, version: 6.1.7601.23572, time stamp: 0x57fd02d3
Exception code: 0xc0000374
Fault offset: 0x000ce8fb
Faulting process id: 0x1a0c
Faulting application start time: 0x01d2885d4b8e65a5
Faulting application path: C:\Program Files (x86)\ArcGIS\Desktop10.4\bin\ArcMap.exe
Faulting module path: C:\Windows\SysWOW64\ntdll.dll
Report Id: 64c93535-f451-11e6-9a35-005056c00008
Any ideas about what might be going and how to fix it?