Cannot install Windows Updates - get error code 80070308

I posted this yesterday, but as this was my first post in the Windows 7 forum, I was instructed that I did not include all of the required information. I closed the old post and am re-posting with all of the required documentation.
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Since mid February, all of my Windows update patches have continually failed with an error code of 80070308. I have never had an issue with any Windows Updates prior to mid February. I am running Windows 7 Professional SP1 64 bit. I have a newer Dell XPS8500 machine with 32 GB RAM and an Intel Core i7-3770 CPU @ 3.4 GHZ. The following updates continually fail:

Cumulative Security Updated for IE 11 for Windows 7 x64 based systems (KB2909921)
Security Update for Internet Explorer 11 for Windows 7 for x64-based Systems (KB2909210)
Security Update for Microsoft .NET Framework 3.5.1 on Windows 7 and Windows Server 2008 R2 SP1
for x64-based Systems (KB2898857)
Security Update for Microsoft .NET Framework 3.5.1 on Windows 7 and Windows Server 2008 R2 SP1 for
x64-based Systems (KB2901112)
Security Update for Microsoft .NET Framework 3.5.1 on Windows 7 and Windows Server 2008 R2 SP1 for
x64-based Systems (KB2911501)
Security Update for Windows 7 for x64-based Systems (KB2912390)
Security Update for Windows 7 for x64-based Systems (KB2916036)
Update for Windows 7 for x64-based Systems (KB2843630)
Update for Windows 7 for x64-based Systems (KB2919469)

I tried running the "Fix it" program recommended in the MS troubleshooting link, but that did not help. I have also tried installing with Norton 360 turned off (both virus protection and firewall), but to no avail.
In addition, per the info in this forum, I also ran the System Update Readiness Tool (SURT) and did the SFC scan, but still get the same 80070308 error code.
As instructed, I have attached both the CBS log file (it was too big to upload so I separated it into two files for upload) nd a word document with a screen capture of the error Windows Update provides. I have also copied the MGADiag information below. Please let me know if you need any other info to help me with this.
Any help that you can provide would be most welcome. Thanks in advance!

Bruce

Code:

 
Diagnostic Report (1.9.0027.0):
-----------------------------------------
Windows Validation Data-->
Validation Code: 0
Cached Online Validation Code: 0x0
Windows Product Key: *****-*****-M3DJT-4J3WC-733WD
Windows Product Key Hash: xo+ajVSpae7/4VoZjS7m6JL0f3A=
Windows Product ID: 00371-OEM-8992671-00524
Windows Product ID Type: 2
Windows License Type: OEM SLP
Windows OS version: 6.1.7601.2.00010100.1.0.048
ID: {D7D7018A-E44B-4E79-96B5-D076832FCFBC}(3)
Is Admin: Yes
TestCab: 0x0
LegitcheckControl ActiveX: N/A, hr = 0x80070002
Signed By: N/A, hr = 0x80070002
Product Name: Windows 7 Professional
Architecture: 0x00000009
Build lab: 7601.win7sp1_gdr.130828-1532
TTS Error: 
Validation Diagnostic: 
Resolution Status: N/A
Vista WgaER Data-->
ThreatID(s): N/A, hr = 0x80070002
Version: N/A, hr = 0x80070002
Windows XP Notifications Data-->
Cached Result: N/A, hr = 0x80070002
File Exists: No
Version: N/A, hr = 0x80070002
WgaTray.exe Signed By: N/A, hr = 0x80070002
WgaLogon.dll Signed By: N/A, hr = 0x80070002
OGA Notifications Data-->
Cached Result: N/A, hr = 0x80070002
Version: N/A, hr = 0x80070002
OGAExec.exe Signed By: N/A, hr = 0x80070002
OGAAddin.dll Signed By: N/A, hr = 0x80070002
OGA Data-->
Office Status: 109 N/A
OGA Version: N/A, 0x80070002
Signed By: N/A, hr = 0x80070002
Office Diagnostics: 025D1FF3-364-80041010_025D1FF3-229-80041010_025D1FF3-230-1_025D1FF3-517-80040154_025D1FF3-237-80040154_025D1FF3-238-2_025D1FF3-244-80070002_025D1FF3-258-3
Browser Data-->
Proxy settings: N/A
User Agent: Mozilla/4.0 (compatible; MSIE; Win32)
Default Browser: C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
Download signed ActiveX controls: Prompt
Download unsigned ActiveX controls: Disabled
Run ActiveX controls and plug-ins: Allowed
Initialize and script ActiveX controls not marked as safe: Disabled
Allow scripting of Internet Explorer Webbrowser control: Disabled
Active scripting: Allowed
Script ActiveX controls marked as safe for scripting: Allowed
File Scan Data-->
Other data-->
Office Details: <GenuineResults><MachineData><UGUID>{D7D7018A-E44B-4E79-96B5-D076832FCFBC}</UGUID><Version>1.9.0027.0</Version><OS>6.1.7601.2.00010100.1.0.048</OS><Architecture>x64</Architecture><PKey>*****-*****-*****-*****-733WD</PKey><PID>00371-OEM-8992671-00524</PID><PIDType>2</PIDType><SID>S-1-5-21-474501607-432307307-1703230923</SID><SYSTEM><Manufacturer>Dell Inc.</Manufacturer><Model>XPS 8500  </Model></SYSTEM><BIOS><Manufacturer>Dell Inc.</Manufacturer><Version>A09</Version><SMBIOSVersion major="2" minor="7"/><Date>20120905000000.000000+000</Date></BIOS><HWID>79923D07018400FE</HWID><UserLCID>0409</UserLCID><SystemLCID>0409</SystemLCID><TimeZone>Eastern Standard Time(GMT-05:00)</TimeZone><iJoin>0</iJoin><SBID><stat>3</stat><msppid></msppid><name></name><model></model></SBID><OEM><OEMID>DELL  </OEMID><OEMTableID>FX09   </OEMTableID></OEM><GANotification/></MachineData><Software><Office><Result>109</Result><Products/><Applications/></Office></Software></GenuineResults>  
Spsys.log Content: 0x80070002
Licensing Data-->
Software licensing service version: 6.1.7601.17514
Name: Windows(R) 7, Professional edition
Description: Windows Operating System - Windows(R) 7, OEM_SLP channel
Activation ID: 50e329f7-a5fa-46b2-85fd-f224e5da7764
Application ID: 55c92734-d682-4d71-983e-d6ec3f16059f
Extended PID: 00371-00178-926-700524-02-1033-7601.0000-3142012
Installation ID: 018875165384210592487305778515968381323153517102503680
Processor Certificate URL: http://go.microsoft.com/fwlink/?LinkID=88338
Machine Certificate URL: http://go.microsoft.com/fwlink/?LinkID=88339
Use License URL: http://go.microsoft.com/fwlink/?LinkID=88341
Product Key Certificate URL: http://go.microsoft.com/fwlink/?LinkID=88340
Partial Product Key: 733WD
License Status: Licensed
Remaining Windows rearm count: 2
Trusted time: 3/10/2014 3:26:03 PM
Windows Activation Technologies-->
HrOffline: 0x00000000
HrOnline: 0x00000000
HealthStatus: 0x0000000000000000
Event Time Stamp: 12:15:2013 22:04
ActiveX: Registered, Version: 7.1.7600.16395
Admin Service: Registered, Version: 7.1.7600.16395
HealthStatus Bitmask Output:

HWID Data-->
HWID Hash Current: OAAAAAIAAQABAAEAAAADAAAABQABAAEAhFFmNDHFTgR8dnBLCPCKm/Ceo6C9R+pTYtxMAWyZlmM=
OEM Activation 1.0 Data-->
N/A
OEM Activation 2.0 Data-->
BIOS valid for OA 2.0: yes
Windows marker version: 0x20001
OEMID and OEMTableID Consistent: yes
BIOS Information: 
  ACPI Table Name OEMID Value OEMTableID Value
  APIC   DELL    FX09   
  FACP   DELL    FX09   
  HPET   DELL  FX09
  MCFG   DELL  FX09
  FPDT   DELL    FX09   
  SLIC   DELL    FX09   
  SSDT   SataRe  SataTabl
  MSDM   DELL    FX09   
  SSDT   SataRe  SataTabl
  SSDT   SataRe  SataTabl
  DMAR   INTEL   SNB 

I had trouble putting the CBS logs in my original post so I am adding them in this reply.

Does anyone have any ideas on what I can try to fix this issue?! HELP!!!!