Hi guys, so I am a complete newbie concerning all of this but i need to complete this tutorial using CYGWIN:
(i already installed cygwin but have no clue what to do next)

What You Need:
=>A computer running a Linux distro or Windows+Cygwin
=>USB cable to connect your phone to the PC
=>Adb installed

How to install adb:
1. Open Terminal
2. Type:
Code:
sudo apt-get install android-tools-adb
Hit [Enter]
3. Follow the instructions until everything is installed.

INSTRUCTIONS:
1. Connect you (turned on) Phone to the Computer via USB.
2. Open a terminal window.
3. Type:
Code:
adb devices
adb shell
cd data/system
su
rm *.key
4. Done...Now You Just Have To Reboot.

If someone can help me i would but soo thankful!

first CygWin and MinGW are really NOT linux operating systems

CygWin can RUN some ( about 70 to 80% ) of linux programs on Microsoft Windows
BUT ( and this is a VERY BIG ONE) it uses a emulatio0n DLL "cygwin1.dll" and everything has to pass through that ONE file
-------------
MinGW BUILDS!!!!! linux source code into MICROSOFT!!!! .exe files and by using "dlltool" can convert the linux "so" files to MICROSOFT.dll's

but it also can only build about 70% to 80% of Linux code



I take it you have NOT READ the very VAST amount of documents on the cygwin website

https://www.cygwin.com/

and there is a even LARGER amount of documentation and guides

type " cygwin " into google and hit enter



mind you cygwin is TERMINAL ONLY !!!

there are NO gui's
no graphics

just the text ONLY terminal

for graphics you need to install X and a desktop
http://x.cygwin.com/