Hi,
I suggest clear windows update temp folder, start automatic updates service to check the result:
Type CMD into the Start Menu then right-click the result & 'Run as Administrator.
1. Stop the automatic updates client component service (type net stop wuauserv in Command Prompt);
2. From explorer navigate to the C:\windows\SoftwareDistribution\Download folder delete all files & folders;
3. Restart the automatic updates service (type net start wuauserv in Command Prompt);
4. Re-Run Windows Update.
If the issue persists, use the following method to collect Windows update log for further research:
How to collect Windows Update log:
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1. Click "Start", type: "%windir%" (without quotations) and then press "Enter".
2. In the open window, we will see a file named "WindowsUpdate.log".
3. upload the log to SkyDrive and provide us the link for analyzing
http://cid-4b2f155953942dc9.skydrive.live.com/summary.aspx
The above Windows Live ID is ONLY for collecting troubleshooting information. Please do NOT send your questions to it. For any new questions, please post in the forums so that more MSFT, MVP and community members can help you.