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Code 80070490 Windows Update keeps encountering problems and won't install

 

Operating system:Windows 7 Home Premium (64 bit) Service Pack 1
System root: C:Windows
Available physical memory: 6056 MB
CPU: Intel® Core i5-2300 CPU @ 2.80GHz
Drive Info:
C: 1384.17 GB
D: 0.01 GB
Internet Explorer: 11.0

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How to run an elevated command prompt for Windows vista/seven users
- click start, all programs, accessories, right-click the command prompt in the list and click run as administrator, click yes on the user account control window that should appear
- click start, type cmd in the searchbox, right-click the cmd in the list of results and click run as administrator, click yes on the user account control window that should appear
- click start, type cmd in the searchbox, press and keep pressed ctrl + shift Keys on your keyboard, then press enter, click yes on the user account control window that should appear



Download and run System Update Readiness Tool for Windows 7 for x64-based Systems (KB947821) [May 2014]
Then, from an elevated command prompt, launch sfc /scannow, wait till it finishes (15-50 minutes), remember/copy the final message (because later I'd like to see it posted here).
Then launch this command:
copy %SYSTEMROOT%\Logs\CBS\CheckSUR.log %userprofile%\desktop\CheckSUR.txt && copy %SYSTEMROOT%\logs\cbs\cbs.log %userprofile%\desktop\cbs.txt && findstr /c:"[SR]" %userprofile%\desktop\cbs.txt > %userprofile%\desktop\SR.txt

After it, you'll find three files on your desktop: checkSUR.txt, cbs.txt and SR.txt.
Post here the checkSUR.txt, the sr.txt and the final message of the SFC tool.
If the command won't work, try these:

copy %SYSTEMROOT%\Logs\CBS\CheckSUR.log %userprofile%\desktop\CheckSUR.txt
copy %SYSTEMROOT%\logs\cbs\cbs.log %userprofile%\desktop\cbs.txt
findstr /c:"[SR]" %userprofile%\desktop\cbs.txt > %userprofile%\desktop\SR.txt

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