We all had issues with software updates that fail to install and the errors in the logs are not very intuitive or are misleading. Sometimes you suspect a corruption in the Windows Update Agent on the client machine.
What can you do?
Here is a quick and easy to implement trick: I would suggest to try and reinitialize the Windows Update Agent.
Open Comand Prompt with administrative rights and execute following commands.
– net stop wuauserv
– rd C:\windows\SoftwareDistribution /S /Q
-net start wuauserv
You can also try and reset all the Windows Update components on that machine:
Here is a detailed description on how to do reset all Windows Update components, but in most cases the regeneration of SoftwareDistribution folder solves a lot of issues.