Win 10 64bit pro here.
I just ran a full system driver scan using this program, Driver Agent - It has reported 114 drivers installed and 0 out of date or missing. Even the OEM doesn't have all the reported drivers I would have needed to sucessfully complete the upgrade. The windows device manager does not report any problems or missing drivers either. A little late on this report but, just saying what I have and it has primarily been supplied by Microsoft. As far as I am concerned, great job MS and windows 10.