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I was just working on a Thinkpad with Windows 7 and in the homepage of Control Panel\System and Security\Windows Update it showed

Most recent check for updates: Never
Updates were installed: Never

but in Control Panel\System and Security\Windows Update\View update history it showed a list of updates, only one of which had failed. Why would it say Windows Updates have never happened in one place and in another have a list of updates downloaded?

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Hard to diagnose. Perhaps something in Windows\SoftwareDistribution\DataStore (such as DataStore.edb) or Windows\SoftwareDistribution\DataStore\Logs got corrupted somehow? –  Karan May 22 '13 at 22:26
    
Usually running windows update again will fix that. But to be sure windows update is functioning properly and all files have their valid signature, run a check to see if everything is working as it should be. Hit 'windows key' + 'R'. Then type 'cmd', hit enter. Then in the newly opened dos screen, type 'sfc /scannow'. Hit enter and wait for the results. Did that fix anything? –  Forza May 22 '13 at 22:46

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