Hi Marc8581,
If you receive Windows Update error 80246008 (80040154) while downloading updates, you might need to change the Background Intelligent Transfer Service (BITS) or Windows Event Log service settings, and then restart each service.
Follow the steps in the link below to resolve the issue.
Windows Update error 80246008
http://windows.microsoft.com/en-US/windows-vista/Windows-Update-error-80246008
Note: The troubleshooting steps for the Windows update error code 80040154 is same as 80246008.
Hope this information is helpful and let me know if you need any further assistance.
Mouneshwar R – Microsoft Support
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