cant root my metro pcs huawei m920

[jluuvs]

Ive tried following two u tube videos and three forum posts. Cant close the deal on rooting this dang phone. Im not very computer savy at all, but ive read about the advantages of rooting my phone and have my mind made up on doing it. Hopefully someone can help me with maybe a very detailed insrtuctions or video, link to one, or any kind of assistance would be greatly appreciated. Do i need a certain version of windows to complete the command portion of the rooting process? I wont give up till i figure this out.