Which updates do you mean? Game or system OS? For the system it overwrites the OS files with the latest downloads as it installs them, however I don't know if it then keeps the install packages. I'm also sure that once a game installer or updater unpacks and installs itself it is gone.
But I could be wrong.
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Yes, I was speaking about system updates. Those for games you can easily delete them.
That's great point you stated here Dave. We aren't 100% sure if the finished installer (after unpacking) is being deleted also (or more accurately, the packed file itself).
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