Windows Update Error Code 800700C1, Hasn't Updated Since 6-17-15

Everytime I try to run Windows Update, it tells me it encountered an unknown error and gives me that code.

I ran SURT, it didn't fix the problem.

I opened an elevated Command Prompt and ran sfc /scannow. It told me that it found corrupt files but it could not correct them. I even ran it in Safe Mode and also at boot and it still couldn't fix the corrupt files. I have attached the log file for that, the CBS log file and the DISM log file. Attempting to run Dism /Online /Cleanup-Image /CheckHealth gave me error code 87.

I have also tried to run the Windows system repair feature on the install DVD but even that was unsuccessful in solving the problem.

I don't have any restore points prior to 6-17-15 when the issue started since they were deleted in an attempt to fix this problem.

I don't have any registry backups prior to 6-17-15 either, although another user was performing registry edits on this laptop and deleted the backups that he created.

I have the correct original System32 file and all of it's contents on my desktop that I extracted from a Windows 7 install DVD that I can use if needed but I am uncomfortable with replacing these files without knowledgable help.

Hopefully this will give you enough information to help me solve this problem.

Thanks in advance.

Thank you, I'll try and get that done tonight when I get home from work. In the meantime, this copy of Windows 7 Home Premium OA is what came with the laptop that we bought brand new a few years ago. It's the 64 bit edition that now has Service Pack 1 and Im not getting any messages to register this copy.

Got back really late last night, just ran the diagnostic tool this morning. Here are the results. I xxx'd the rest of the product key below for obvious reasons.

Code:

Diagnostic Report (1.9.0027.0):
-----------------------------------------
Windows Validation Data-->

Validation Code: 0
Cached Online Validation Code: 0x0
Windows Product Key: *****-*****-xxxxx-xxxxx-xxxxx
Windows Product Key Hash: PVjSC5x6njvqunmbCY3lOD7rYDo=
Windows Product ID: 00359-OEM-8992687-00007
Windows Product ID Type: 2
Windows License Type: OEM SLP
Windows OS version: 6.1.7601.2.00010300.1.0.003
ID: {DDE0F459-E02C-4777-957B-0D27FC931434}(1)
Is Admin: Yes
TestCab: 0x0
LegitcheckControl ActiveX: N/A, hr = 0x80070002
Signed By: N/A, hr = 0x80070002
Product Name: Windows 7 Home Premium
Architecture: 0x00000009
Build lab: 7601.win7sp1_gdr.150316-1654
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 8.0; Win32)
Default Browser: C:\Program Files (x86)\Opera\Opera.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>{DDE0F459-E02C-4777-957B-0D27FC931434}</UGUID><Version>1.9.0027.0</Version><OS>6.1.7601.2.00010300.1.0.003</OS><Architecture>x64</Architecture><PKey>*****-*****-*****-*****-9YQTR</PKey><PID>00359-OEM-8992687-00007</PID><PIDType>2</PIDType><SID>S-1-5-21-549166196-3867662017-3021753738</SID><SYSTEM><Manufacturer>ASUSTeK Computer Inc.</Manufacturer><Model>K84L</Model></SYSTEM><BIOS><Manufacturer>American Megatrends Inc.</Manufacturer><Version>K84L.205</Version><SMBIOSVersion major="2" minor="6"/><Date>20110825000000.000000+000</Date></BIOS><HWID>34233D07018400FE</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>_ASUS_</OEMID><OEMTableID>Notebook</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, HomePremium edition
Description: Windows Operating System - Windows(R) 7, OEM_SLP channel
Activation ID: d2c04e90-c3dd-4260-b0f3-f845f5d27d64
Application ID: 55c92734-d682-4d71-983e-d6ec3f16059f
Extended PID: 00359-00178-926-800007-02-1033-7600.0000-2092009
Installation ID: 108206041495167203223586503986348341931185520254722032
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: 9YQTR
License Status: Licensed
Remaining Windows rearm count: 1
Trusted time: 10/21/2015 10:21:13 AM

Windows Activation Technologies-->
HrOffline: 0x00000000
HrOnline: 0x00000000
HealthStatus: 0x0000000000000000
Event Time Stamp: 7:31:2015 16:29
ActiveX: Registered, Version: 7.1.7600.16395
Admin Service: Registered, Version: 7.1.7600.16395
HealthStatus Bitmask Output:


HWID Data-->
HWID Hash Current: LgAAAAEAAQABAAEAAAABAAAAAwABAAEA6GHcX9Ip8qDYXGRaMnqeAvqYLswucw==

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			_ASUS_		Notebook
  FACP			_ASUS_		Notebook
  DBGP			_ASUS_		Notebook
  HPET			_ASUS_		Notebook
  MCFG			_ASUS_		Notebook
  ECDT			_ASUS_		Notebook
  SLIC			_ASUS_		Notebook
  SSDT			PmRef		Cpu0Ist
  SSDT			PmRef		Cpu0Ist
  ASF!			INTEL 		 HCG

Hmmm...one thing I noticed is that the product key on the sticker does not match any of the numbers in the report. Is that normal?

64bit7HP said:

Hmmm...one thing I noticed is that the product key on the sticker does not match any of the numbers in the report. Is that normal?

Yes, that is normal. If you ever need to re-install W7, you might want to use the key on the COA sticker. It depends on where you get the installation media from. Discs provided by the vendor of the computer often have that vendor's applicable OEM key embedded and you won't have to enter any key.

The key that you are using is the one that Asus uses for most (all?) of it's OEM installations of this version of Windows. If you Google "OEM-8992687-00007" you will come up with other people using the same key (e.g. this post). As mentioned in that post, these types of keys are different. There is no value in hiding them. There is no harm in hiding then either. It is not important to determining the genuineness of the installation.

Your installation of W7 does not seem to have been flaged as non-genuine... but I'll let NoelDP confirm.

Just to confirm: Windows 7 Home Premium is written on your COA sticker. Correct?

Thanks. "Windows 7 Home Premium OA" is exactly what it reads. What the OA stands for, I don't know.

Great. Thanks Noel.