I am seeing a very strange problem: yesterday, out of sudden, the windows update showed I need to install 46 important hotfixes (this does not include the optional ones) on a Windows 7 PC. I let the update run, and restarted the PC. The next day,windows update shows I need to install another 21.
I took a look at the list, some of the hotfixes are really old and should have been installed previously, e.g. KB2597126, which came out in 2012. Another example is KB2597986.
It seems some hotfixes were removed from the PC. What could be wrong?
--update--
I run get-hotfix -Id in Powershell on them. It shows these hotfixes are not installed. But this shouldn't happen, because this PC is set to auto-install new updates.