KB2468871 System Update Install Error! (error 643)

Anonymous
2011-08-11T05:29:29+00:00

original title: KB2468871 System Update Install Error!

Ok Now I have tried to install from windows update and manually trying to install this update KB2468871

It is not working and it keeps giving me an error

Error code 643.

Windows for home | Previous Windows versions | Windows update

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Anonymous
2011-10-20T01:11:13+00:00

Finally after weeks of frustration I was able to fix this mess, none of the advice microsoft provided worked, uninstalling reinstalling, using microsoft .net removal tool, microsoft fixit, disabling UAC, and numerous other things which did nothing at all.

The source of this problem with KB2468871 is that a .dll needed for it to install is not present for whatever reason, copying and inserting the .dll where it needs to be will allow you to install this update.

Download the KB2468871 update here:

http://www.microsoft.com/download/en/details.aspx?id=3556

Try to install it, so that it extracts the needed .dll

C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Xml.Serialization\v4.0_4.0.0.0__b77a5c561934e089

Go to there and you should see the .dll file "System.Xml.Serialization.dll" If you can't find it do a search for it.

Copy it.

Paste it here C:\Windows\Microsoft.NET\Framework\v4.0.30319

And paste it here:

C:\Windows\Microsoft.NET\Framework64\v4.0.30319

Install the KB2468871 update you downloaded earlier.

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  2. Anonymous
    2013-10-19T13:01:17+00:00

    Man,

    You have solved my problem!!!

    After weeks of trying to fix it with all the help provided by Microsoft, at least now this update is installed.

    You are the best!!!

    Thanks for this trick!

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  3. Anonymous
    2013-09-23T19:33:12+00:00

    Hi guys!

    The procedure worked for me.

    I am running Win 7 Ultimate, I had to reinstall .NET, and I had problems with installing this particular update KB2468871. It's sorted now.

    Thank you!

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  4. Anonymous
    2013-09-03T03:19:55+00:00

    I have been working on this for days...trying all the suggested fixes and nothing worked. Then I tried the above and it worked like a charm!! Thank you for ending my frustration!!!

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