I'm on build 9860 right now. When I try and install the new releases through the built in mechanism, I get one of two Windows Update errors: 0x8007003 and 0x80240016. I've tried using the fixit tools, reg cleaners, etc. to no avail. I download the 9879 update from here: http://windows.microsoft.com/en-us/windows/preview-iso-update?os=win10. Should I just put it on a flash drive and boot from it and do an in-place upgrade? Any other suggestions?