Windows on External Drive

[No_Mercy]

So I recently upgraded the HDD in my Windows laptop to an SSD and now I have a spare HDD (in an external enclosure) with Windows 10 installed but lets cut to the chase. Basically I want to boot up Windows on an external drive when I tried it boot up on all I got with the Windows splash screen and then proceeded to start up with my regular drive with OS X Mavericks Version 10.9.5. So what's the deal, how can I make this work?

Thanks

 

[Taz Mangus]

With your external drive plugged into your Mac, execute the Disk Utility App. In Disk Utility, select View->Show All Devices. Select the top level external drive device listed on the left side. Post a picture showing the info.

 

[No_Mercy]

There you go.