Well, that's not entirely true. It has updated correctly for the first couple of updates, incl. Service Pack 3. After that, I keep getting error messages when trying to update via the official Windows Update website: First it searches for necessary updates, then detects several recommended updates for Windows XP Pro and MS Office 2007, then downloads them (well, they are downloaded already, so this keeps getting skipped).

After that, it attempts to install the updates, but fails in doing so and gives me an error message. This essentially means I can no longer install any (security) updates, which of course sucks. By the way, this is a fresh install and I have not done anything to any of the default settings.

Somebody got any clue on this. Thanks.