Recently I was at a site where the KB2509553 security update on Windows XP would not install because of this error, even after retrying a couple of times:
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KB2509553 Setup Error
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Setup cannot update your Windows XP files because the languageinstalled on your system is different from the update language.
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OK
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The error came from the Dutch version of Microsoft Update and the (also Dutch) Autoupdate inside Windows XP.
The solution that seemed easy didn’t work:
Manually download the Dutch version at the KB2509553 download page, and install that one.
Thanks Halima S for mentioning this on the Microsoft Answers site.
So: where should I start looking to get this security update installed?
–jeroen
The Wiert Corner - irregular stream of stuff 