Running Windows 8 from external Hard Drive
I was wondering if I could run windows 8 from an external hard drive, and still have it run smoothly, I have a macbook pro retina 13 inch late 2013, 2.4 GHz Intel Core i5, 4 GB 1600 MHz DDR3 and Intel Iris 1536 MB running Os x Yosemite. The hard drive I want to run it on is a
Hitachi GST X-Series 750GB USB 2.0 2.5" Portable External Hard Drive 0S03061 Black
which you can find more about here. (Btw I already have one of these)
http://www.newegg.com/Product/Product.aspx?Item=N82E16822145468
Is this suitable enough to play heavy games which is the main purpose because I am running low on space and if it is can someone give me steps to run it if it is possible.
MacBook Pro with Retina display, OS X Yosemite (10.10.1)