vagrant automatically remove ruby.exe - Udacity Real Time Analytics course VM download error cannot find path for ruby

[r poon]

1) I looked up and eliminate it is NOT the installation path problem, instead ruby.exe was missing in mingw64 folder

2) I checked out that only rubyw.exe is present in the folder, NOT ruby.exe.

3) I googled it and read several post that the anti-virus removed ruby.exe, I inspected the folder and indeed was so

4) I inspected the virus chest of avast anti-virus software and found curl.exe was removed (NOT ruby.exe)

5) Actually it just works fine if you recover the curl.exe and put it back into E:\programs\embedded\mingw64\bin  or wherever your mingw64 is installed.

Note: Indeed rubyw.exe and ruby.exe has same size and probably the same file

4)