PLEASE READ Advisory: Kernel memory issue affecting multiple OS (aka F**CKWIT, KAISER, KPTI, Meltdown & Spectre) for the latest updates.
In the update manager details you see the following error:
80040406 Delivery failed for software subscription [subscription-name]. Access to the source update location is denied or the location is otherwise unavailable.
First seen in Enterprise Console 4.0.0
This error could occur for a number of reasons.
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 knowledge base 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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