One of my Windows Vista PCs has been refusing to download updates from Windows Update, reporting that:
Windows could not search for new updates
A bit of googling turned up various forum threads/blog posts about this article but most of them recommend stopping the Windows Update service, renaming/removing the %systemroot%\SoftwareDistribution folder, restarting the Windows Update service and attempting an update. That seems to work but Jeroen Jansen’s post on the subject included a very useful comment with this little gem:
“Actually you donâ€™t have to delete the entire SoftwareDistribution folder, just the folders inside it with update cache. This way you can keep the update history.”
I renamed each folder one at a time and it seems that it was WuRedir that was causing the error on my system (that is to say that after that folder was renamed, Windows Update ran successfully, even after restoring all of the other folders, therefore maintaining my history and other configuration).
I’m not sure if it was as a direct result, but I’m pretty sure Vista switched from using Windows Update to Microsoft Update at the same time.