It rebooted several times when installing the updates, I've since tried rebooting and re-checking for updates several times. That said, it does list a whole bunch of failed updates. But as I said, update doesn't show any new ones - I'm guessing the failed ones were taken care in a cumulative patch
I would check MS site for the update as it gives you the serial number of the drivers in the update so you can check it has been installed in device manager
The latest update is phased so it's quite possible you do not have it and as your SP4 is so new you cannot easily tell but even the boot time and hello are noticeably snapper too.