My iPhone 5 won't jailbreak?

I've tried everything. I've restored my settings and that didn't work. I'm trying it off of evasi0n. I'm using a windows computer and signing in under administrator. I have an iTunes account and I cloud. I don't know why it won't it gets to the screen and I have my phone plugged in and the bar that said jailbreak is still grey not darkened. It's stressing me out please help

Update iTunes and the firmware.
and take off all locks

This error's been fixed very easily read the tutorial here

http://www.ujailbreakiphone.com/2013/02/evasi0n-ios-6-1-jailbreak-errors-bugs-faq.html

When you plug in your device does it get recognized by the computer? Like by iTunes or anything? Some things to try are to use a different USB port or different USB cable. What I'm pretty sure will work is if you update iTunes to its most current version and restore your iPhone. But these are the order the steps should be after you update iTunes.

1. Back up your device to iTunes.
2. Do a clean restore using iTunes.
3.Re-jailbreak (details below)
4. Restore from backup

If you want to jailbreak the right way, here's a step by step tutorial on how to do it:

Here are some cool things you can download once you're jailbroken:

Hope this helps you out!