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Windows Update Error Code 00000643


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#1 zebop55

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Posted 17 August 2011 - 04:51 PM

Good afternoon. I'm having a problem with windows Update and looking for a solution.

Here's the facts:

My computer is 2008 Dell running MS Windows Vista Home Premium 32-bit SP2

I'm trying to run a Windows Update:

Security Update for Microsoft .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista, Windows 7, Windows Server 2008 x86 (KB2539636)

Update for Microsoft .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista, Windows 7, Windows Server 2008 x86 (KB2468871)

Update for Microsoft .NET Framework 4 on Windows XP, Windows Server 2003, Windows Vista, Windows 7, Windows Server 2008 x86 (KB2533523)

I've tried to install these updates both individually and as a group. Each time they fail and give me an error code of "00000643."

I visited the Microsoft Support website, searched for the error code and received the following information:

CAUSE
: Windows Update error code "0x643" and Windows Installer error code "1603" are generic error codes. Typically, these error codes mean that the update was not installed. These errors codes are usually caused by a corruption in the .NET Framework installation or by an inconsistency on the MSI database state.

SOLUTION:
To resolve this problem, you must fix the MSI software update registration corruption issues, or uninstall multiple versions of the .NET Framework by using the .NET Framework Cleanup Tool, and then reinstall those components.

http://support.microsoft.com/kb/923100

I'll spare you all the details, but I get very uncomfortable when I read "edit the registry." I've Googled the error code and received other information that is totally different to the steps Microsoft advises.

I know there's no such thing as "one size fits all" but any suggestions on how to to fix this problem would be appreciated. :thumbup2:

Thanks.
Computers are like Old Testament gods; lots of rules and no mercy. ~Joseph Campbell

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#2 TSalarek

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Posted 17 August 2011 - 05:01 PM

kb923100 gives a link in method1 that offers a "fix it for me". have you tried that yet? (direct link: http://support.microsoft.com/kb/971187 )

then try method 2 (run uninstaller then reinstall components) noting that you need to install them in the order listed as altering the order may cause conflicts.

an aversion to manual regedit is very much ok ;)

#3 zebop55

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Posted 18 August 2011 - 08:48 PM

Thank you. I will certainly give the tool fix a try.

I'll get back with how well it works (or doesn't). B)
Computers are like Old Testament gods; lots of rules and no mercy. ~Joseph Campbell

#4 coxchris

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Posted 19 August 2011 - 12:15 AM

I am going to give you other suggestions in the Windows 7 forum. Many Windows 7 users are having the the same problem with these types of updated. Disclaimer: The windows vista and windows 7 have the same windows update component and some the same core commands

http://www.bleepingcomputer.com/forums/topic414208.html - more links to try

Edited by coxchris, 19 August 2011 - 12:18 AM.

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#5 zebop55

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Posted 21 August 2011 - 09:44 AM

Well, I downloaded and ran the Microsoft FixIt tool, but it didn't take care of the problem. These downloads continue to fail with error code 00000643. Frustrating. :huh:

Looks like i'll be checking out the link provided by Coxchris in search of another option to try.
Computers are like Old Testament gods; lots of rules and no mercy. ~Joseph Campbell




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