You have just installed Symantec Protection Engine (SPE) 7.9 in a Windows OS with JRE 64 bit but the Symscan service is not starting.
Symscan service failing or not starting after a new installation Symantec Protection Engine (SPE) 7.9 with JRE 64-bit.
Faulting application name: symcscan.exe, version: 18.104.22.168, time stamp: 0x58ec9a12
Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000
Exception code: 0xc0000005
Fault offset: 0x0000000000000000
Faulting process id: 0x13c8
Faulting application start time: 0x01d3420c913d9c82
Faulting application path: C:\Program Files\Symantec\Scan Engine\symcscan.exe
Faulting module path: unknown
Report Id: d7e4975a-adff-11e7-80ef-005056854b5e
Faulting package full name:
Faulting package-relative application ID: