For some reason, if I install Windows 7 from my .iso in an external HD drive, it installs fine. But if I delete the virtual machine on my external and try to install the exact same .iso to my internal SSD, it will hang on "installing windows 7". The window asking me to designate the wifi connection as public, home, etc., comes up, and I can select it, but it just continues "installing windows 7" forever. I have timed it at 6.5 hours before I finally gave up. If I try to install it to the external, it will install in a very short period of time. Also, when I try to install on the internal SSD, the installation window shows a gray tool bar in windows, not the transparent one that is shown in Windows 7. When I try to install it to the external HD, it shows the transparent one. Can anyone help?!