cleaning up WSUS

I have SBS2008. I want to clean up WSUS by removing the updates that have already been applied. This is taking up over 90 Gb of space on the server. How do I go about this?
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First, decline the updates that you don't want.
Many will be already declined automatically.
Then download the WSUS Server Debug Tools from the WSUS Page.

You can remove old downloaded updates with "wsusdebugtool.exe /tool:purgeunneededfiles"
Removing old updates from WSUS

Here is another one, specifically for SBS2008
Note for canon:
The wsusutil parameter deleteunneededrevisions  doesn't exist on WSUS 3.1

Instead, the Cleanup Wizard is available from the WSUS console if you want to avoid the download.
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DonNetwork AdministratorCommented:

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Also remove extra languages, producs you don't need etc.
If you have WSUS to only download approved updates that are needed, you should find that the size does not get very big. The database of possible updates can contain thousands without much of an increase in size. So some configuration changes should prevent it from growing unbounded so quickly.
LostInWindowsAuthor Commented:
Thanks for all the really great ideas and links!
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