Vista will no longer automatically update. Nothing I've attempted works to fix the issue.
(Last revised 4-23-2019)
The Vista Update Search issue gets triggered by applicability of at least one of the following updates for a given installation: KB4015195, KB3191203, KB3185911, KB3087039, KB4014661.
An installation can be made ineligible for the issue by manually preinstalling all applicable of the following:
KB4019204 (equivalent to KB4015195)
KB4012583 (equivalent to KB3191203)
KB3205638 (equivalent to KB3185911)
KB4015380 (equivalent to KB3203859,
KB3164033, KB3140735 and KB3087039)
KB4018271 (IE 9 only; equivalent to
Set automatic updates to "Never check for updates" and reboot prior to manual installation.
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Here are the March 2017 Vista Update download links.
If I missed one, please advise. IE9 is included above.
Vista Support ends April 11, 2017 per MS here.
EDIT - If you have Microsoft Office, find your March 2017 Version Updates here. I have Office 2007 - still supported.
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