In the update manager details you see the following error:
80040409 Check reveals that data written to [path] due to software subscription [subscription-name] is invalid (e.g. corrupt or incomplete).
First seen in Enterprise Console 4.0.0
The files are checked against a manifest file before they are decoded and distributed to the shared locations. This error indicates that one or more of the files are corrupt.
On the affected update manager:
C:\Documents and Settings\All Users\Application Data\Sophos\Update Manager\
If you have tried all the steps above but updates are still failing check the Sophos Update Manager Logviewer.exe tool for a more detailed error. Search the knowledgebase for errors you see in the Logviewer.
If you are unable to find information in the knowledgebase regarding the errors shown:
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