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KB2742597 won't install (.net 1.1 sec update)

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This update has failed to install about 10 times now. Short of installing all of my .net framework packages and reinstalling, is there anything else I can try?

I did a little web-searching, but it wasn't very helpful :(


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Hi, MT16:

Until the geeks (esp Windows update guru Maurice Naggar) arrive, it would probably help to know your OS version and the exact error code/message you're getting.

Have you already tried the offline installer?

Several folks who had this problem recently had good luck with solutions posted in the following forums, though in some cases it did require a repair or a complete reinstall of .NET framework:

http://answers.micro...4d-1e1095bf6293 (especially perryep's method)



additional, generic info for this patch is here: http://support.micro....com/kb/2742597

Over at sevenforums.com, they typically suggest running SURT and SFC, and collecting some CBS logs in order to troubleshoot these sorts of problems.

Hopefully, you'll get it installed without having to reset Windows updates or reinstall the entire .NET Framework!



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Thank you DaleDoc and Ron! :) I have not tried the offline installer. I am going to try that first, then if that doesn't work, I"ll try what you and Ron suggested.

I'll let you know how it goes.

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For the offline installer, you need to download and SAVE it somewhere on your computer, and then run it (that's why it's called the offline installer). :)

Instructions here: http://www.microsoft.com/en-us/download/details.aspx?id=36281

Also, did you see this?


To install this update, you must have Windows Installer 3.1 or a later version installed on the computer.


Anyway, this is over my head, for sure.

Unless Maurice is available to assist you, I would certainly follow Advanced Setup's advice.

BTW, sevenforums.com is only for Win7.

If you're not running Windows 7, then you'd want to use either http://www.vistax64.com/ for Vista, or a suitable XP forum for WinXP or for general computer help. ;)

Good luck,


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Looking at your attached images, it is failing because the OS sees in the Registry the path to netfx.msi in a sub-directory in the TEMP folder but the file physically does not exist and so it fails.

I have run into this kind of problem numerous times on the systems I have maintained. What I do is copy the text in the "Use Source" field of the first graphic and open Regedit. Then in Regedit I would point to the Root of the Registry and search for that string in the Registry (the string being the string in "Use Source" of the first graphic). Then I would delete the key of the Registry that is found to hold it. Once I do that I am able to successfully install what was previously unsuccessful. This approach has worked with multiple applications and is a viable approach.

If you follow my directions, find the string in the Registry but you are unsure what to delete, then you can capture the screen window within Regedit and post that graphic and I can give you subsequent guidance.

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For the offline installer, you need to download and SAVE it somewhere on your computer, and then run it (that's why it's called the offline installer). :)

Instructions here: http://www.microsoft...s.aspx?id=36281

I did save it :)

Thanks again!

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You are still cutting off the left pane view. :(

However, the bottom of the screen capture does show the path. Therefore I believe, that what is needed is to DELETE


That is on the left pane under the path...


for you to DELETE...

..\DDE7F2BCF1D91C3409CFF425AE1E271A { as best as i can ascertain from your graphic }

Once done, you can re-execute the saved installer.

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