When you click on the error code it will give you a number of possible solutions.
We can only replicate those if we had the same error code, but the only solution I came across was someone having to do a repair install in Vista.
This is how to get the best out of sfc /scannow
http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.htmlAs you will see from the tutorial there is a command that will put the CBS Log onto your desktop with just the bits that it is unable to repair.
If that doesn't open when you double click on it, right click on it and select Open with then select Notepad which you can then copy & paste into the reply box.
To do that, place the cursor at the beginning of the text and hold the left mouse button down then drag across and down to highlight the text.
Right click in the text area and select Copy then place the cursor in the reply box and select Paste.
It's easier to read in this format as the CBS Log is quite large with all of the bits that it has checked and repaired.
When you get a sfc /scannow report that says it is unable to repair some files then you are usually looking at either a Repair install, Reinstall or factory reset but with an install disk you can do an offboot sfc /scannow that can usually repair the files from a fresh source.
If you don't have a Win 7 x64 SP1 install disk you can download and Save the ISO for your version from
http://www.w7forums.com/threads/official-windows-7-sp1-iso-image-downloads.12325/page-2#post-124821You can then use
http://www.microsoftstore.com/store/msusa/html/pbPage.Help_Win7_usbdvd_dwnTool to create a bootable USB or DVD.
To boot up with the disk you will probably have to change the Boot order which you can do by tapping F12 (usually) as you switch on, but you will see which of the two keys to press as they appear at the bottom of the screen when you boot up.
F2 is usually for Set up (BIOS) and the other is for a one off change of Boot order.
Use the cursor keys to highlight the media you are using (ODD = Optical Disk Drive and is the disk player) - insert the media and press enter.
You will momentarily be prompted to press any key to boot from that media - do that and after it has loaded you may be presented with a screen with the option to Press F8.
Do that then select Safe Mode with Command Prompt.
This will take you onto a splash screen where you select Repair your Computer - use the dropdown to change currency/language or what it prompts you for if applicable.
You will then be in the Recovery Environment where you select Command Prompt.
At the command prompt enter
bcdedit |find "osdevice" (that's a Pipe symbol before find and is the upper case of \)
Using whichever partition letter it gives enter (assuming C: ) -
sfc /scannow /offbootdir=C:\ /offwindir=C:\Windowsexit (to close the command window when done)
Remove the bootable media and click on Restart
If that reports that it has fixed files then you can try the Update again.
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