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Updates fail, errors I get:

Error details: Code 643, Code 80070026, Code 800700C1

Here are the updates I try to install:

  • KB2518870
  • KB2572078
  • KB2633870
  • KB2656351
  • KB2570947
  • KB2468871
  • KB2533523

I tried googling for these errors but haven't found any certain answers. I thought perhaps the experts here in superuser might be of help.

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Can you install just one of those updates? –  Moab Apr 1 '12 at 20:46
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3 Answers 3

According to a post here you might want to try turning off your anti-virus, and performing a clean boot (i.e. disable all programs and all non-Microsoft services at boot).

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Nope :( that didn't solve my issue. –  Shimmy Apr 1 '12 at 18:59
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Enter the following three commands from an elevated command prompt:

net stop wuauserv
rmdir /s %windir%\SoftwareDistribution\WUredir
net start wuauserv

You can also do the same thing from the services control panel and by deleting (or renaming) the directory from Explorer.

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I tried it and it didn't help. –  Shimmy Apr 1 '12 at 19:42
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Try deleting the entire SoftwareDistribution folder. –  Moab Apr 1 '12 at 20:46
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You might try, after deleting the SoftwareDistribution, to install those updates manually via command line. Two ways:

  • with wuauclt (built-in, but i dont know how to select a specific update. if it is even possible?)
  • with wuinstall (third party tool, but it uses the windows update api)

for example the command for installing the first mentioned update:

wuinstall.exe /install /match KB2518870

if both ways are still not working, you might update your windows update :)

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