Download Putty: http://www.chiark.greenend.org.uk/~sgtatham/putty/
Using putty.exe:
Putty GUI:
HostName: 127.0.0.1
Port: 2222
When you connect(Terminal Screen):
User: vagrant
Passwd: vagrant
Before you try to connect, verify your VM using cmd.exe:
vagrant status
If it is down use:
vagrant up