To determine whether your Vagrant is out of date or not, issue:
$ vagrant version
Installed Version: 1.7.4
Latest Version: 1.7.4
You're running an up-to-date version of Vagrant!
If yours is out of date, you can download it from its download page. However, being a lazy programmer, that’s still too many clicks. I want to figure out a way to update or install Vagrant from the command line without prompt.
And here you go!
Vagrant binaries are distributed by Bintray, its format is:
Make sure to use the full path instead of relative .\vagrant.msi, and Vagrant should be installed in the default location C:\HashiCorp\Vagrant. To find out all possible options, Just type msiexec command only.