I've had alot of problem this morning.  Internet explorer has crashed every time it is opened.  Here is a sample crash notice (running Total Security 2014):
Problem signature:
  Problem Event Name:	BEX64
  Application Name:	iexplore.exe
  Application Version:	11.0.9600.17496
  Application Timestamp:	546fdf97
  Fault Module Name:	StackHash_2264
  Fault Module Version:	0.0.0.0
  Fault Module Timestamp:	00000000
  Exception Offset:	0000000000000000
  Exception Code:	c0000005
  Exception Data:	0000000000000008
  OS Version:	6.1.7601.2.1.0.768.3
  Locale ID:	2057
  Additional Information 1:	2264
  Additional Information 2:	2264db07e74365624c50317d7b856ae9
  Additional Information 3:	875f
  Additional Information 4:	875fa2ef9d2bdca96466e8af55d1ae6e
I was running Total Internet Security 2014 and uninstalled it.  When Bitdefender had been uninstalled, internet explorer worked fine without any crashes.  I downloaded the latest installer which has upgraded me to 2015 and the same crashing problem occurs.
This was the most recent error (2015):
Problem signature:
  Problem Event Name:	BEX64
  Application Name:	iexplore.exe
  Application Version:	11.0.9600.17496
  Application Timestamp:	546fdf97
  Fault Module Name:	StackHash_56f5
  Fault Module Version:	0.0.0.0
  Fault Module Timestamp:	00000000
  Exception Offset:	0000000000000000
  Exception Code:	c0000005
  Exception Data:	0000000000000008
  OS Version:	6.1.7601.2.1.0.768.3
  Locale ID:	2057
  Additional Information 1:	56f5
  Additional Information 2:	56f50057683cdbfd654c11c2adb3bbee
  Additional Information 3:	11e5
  Additional Information 4:	11e55f3ceaa742af752d4088e4931316
I have noticed that when running the earlier version of Bitdefender, the stackhash error code was always the same.  However, updating the version generates a different fault module error, either the above StackHash_56f5 or StackHash_8f99.
I'm looking for some tech support please, so I can continue to use IE.