Cannot download files from Internet Explorer 11

I have a l Dell Precision laptop with Windows 7 Pro 64 bit.
I cannot download files in Internet Explorer 11.
The downloading finishes, but when it says” running security scan”, I get a message that the file could not be downloaded and IE crashes with the following error.  All Windows updates installed. I can download files in Chrome.  A few weeks ago I had a Trojan that was detected by a scan using Microsoft Security Essentials.  I'm not sure if that had anything to do with it.

Problem signature:
  Problem Event Name:      BEX64
  Application Name:      iexplore.exe
  Application Version:      11.0.9600.17937
  Application Timestamp:      55a7fb4f
  Fault Module Name:      StackHash_6c37
  Fault Module Version:      0.0.0.0
  Fault Module Timestamp:      00000000
  Exception Offset:      0000000000000000
  Exception Code:      c0000005
  Exception Data:      0000000000000008
  OS Version:      6.1.7601.2.1.0.256.48
  Locale ID:      1033
  Additional Information 1:      6c37
  Additional Information 2:      6c3785e28f2114beca863a6e1294065e
  Additional Information 3:      c27d
  Additional Information 4:      c27d65fd6768e42c537e194dec1ffc68
cja-tech-guyAsked:
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Paul MacDonaldDirector, Information SystemsCommented:
From a command prompt run SFC /SCANNOW to make sure IE (and its dependencies) is intact.

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jcimarronCommented:
cja-tech-guy--
Also, run CHKDSK from a Command Prompt.  (You will be told it will be run on you next boot.)

Also there was a Windows Update some months ago that prevented further downloads.
http://arstechnica.com/information-technology/2014/12/microsoft-withdraws-bad-windows-7-update-that-broke-future-windows-7-updates/
Paul MacDonaldDirector, Information SystemsCommented:
Thank you for the points.  Your problem is resolved?
cja-tech-guyAuthor Commented:
99% solved.  The only issue now is when downloading a file the "running security scan" message does not close, but the file downloads.  

thanks,

cja
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