I\'ve used Vagrant for a while on a windows 7 system. Now I\'ve a new PC with windows 10. I installed Oracle Virtual Box and Vagrant and I try to start a machine with the comman
Seems like a bug. You can report it here. But it seems that your bug has been already reported as the issue 6631.
Nevertheless you can try to add rsync to your PATH and check the result. You can do it in 2 ways:
vagrant up from its Cygwin Terminal