Huge update: 753 Mb patch. The contents (not all) can be seen here: https://support.microsoft.com/en-us/help/12387/windows-10-update-history and the files affected here:  https://support.microsoft.com/en-us/kb/3194496 It doesn't fix  the issue where drives randomly disappear from Windows or the SSD freezing issues that some users are experiencing.   Problems: Some people are reporting that the update appears to be stuck at 45% or 94%. Not really: Just ...