Wsus not updating itself
"To ensure on-going service reliability and operation, we must also update and enhance the Windows Update service itself, including its client side software.
These upgrades are important if we are to maintain the quality of the service." The discovery, which came as news to many, is that the Windows Update service (known internally as WSUS) updates itself through a separate channel, managed through Internet Information Services.
I don't believe "train your IT" is a valid argument to this as it just keeps on occurring all the time, everywhere.
The error code is 8024402C Detail: Open Windows Update, there you see a red message "Windows could not search for new updates", Code 8024402C.
However, with Microsoft's latest stealth move, updates to the WU executables seem to be installed regardless of the settings - without notifying users." As it turns out, Dunn may have been looking in the wrong place.
A brief check of the table of contents on Microsoft's Tech Net reveals a page entitled, "Automatic Updates Must Be Updated." Though there is no explicit sentence here that says, "By the way, the IIS-marshaled update channel still functions even when the option in this dialog box is set to 'Turn off Automatic Updates,"' a fairly knowledgeable person reading this page should be able to deduce that this self-update channel is separate and operative. Shouldn't there be a way for the user to say, "I don't want updates, and I mean I don't want updates! Using the Services panel in Computer Management, a user can very easily switch the active state of Automatic Updates from "Automatic" to "Stopped." A moderately skilled administrator - or certainly any administrator who legitimately received his or her certification - should also be able to disengage WSUS by stopping its service host from the command line.
While turning off Automatic Updates makes certain Windows doesn't receive any general update downloads without the user's consent or knowledge, WSUS still checks for updates, including those meant for itself.
It can then - and typically will - update itself anyway.
You can wait for several days, but nothing happens, the process is stuck at X%: I will try to give a somewhat chronological approach to get your server running again.