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I have a WSUS server that insists on downloading updates even when I've specified that it should not download anything locally. Essentially I'm running it as a source of approvals rather than a patch distribution point.

To that end I've set it to not download any updates locally, but it's still doing it and I can't for the life of me figure out why it's doing it and how to stop this behaviour.

Running WSUS 6.2.9200 on Windows server 2012

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  • Hey, what up Kyrill. How do you know it's downloading updates? Large content folder? And how come you windows herding?! Mar 6, 2017 at 11:30
  • I'm everything herding. As for how I know - WsusContent directory goes from 0GB to 45GB over a weekend, which is a bit of a giveaway that it's downloading updates...
    – poolski
    Mar 6, 2017 at 13:29

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That's not expected behaviour if you've selected Do not store update files locally; computers install from Microsoft Update, there's no hidden setting that you're missing.

Couple of things you could try:

  • Restart WSUS Service / restart server
  • Delete all files and folders under WSUScontent then run C:\Program Files\Update Services\Tools\WSUSutil.exe reset ("Checks that every metadata row in the database has corresponding content stored in the file system. If content is missing or corrupted, WSUS downloads the content again. This is useful after restoring a database.")
  • There's a few patches for WSUS 4.0 - notably MS KB 2938066 and 3159706 (although they don't appear very relevant to your interests / issues)

Beyond that I think you're looking at rebuilding (preferably on 2012 R2)

Note - Setting 'do not store updates locally' after the fact won't automatically purge updates already downloaded

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  • I've tried everything I can think of and so far, somewhere between "bugger" and "all" has changed. Looks like I'll have to rebuild on a new server.
    – poolski
    Mar 8, 2017 at 11:48

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