How To Bypass the Windows Authentication?

At first we need a software called Kon-Boot and we will have to make either CD or Pendrive bootable with this software.

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Steps for making CD or Pendrive bootable.

• Insert your CD into your CD Rom or Plug in your Pendrive into your system.
• Open Kon-Boot folder.
• For making Bootable CD go to KONCD and burn the image file
• For creating bootable pendrive go to KONUSB and double click on Konbootintall.exe and you will get a command prompt. Type the name of your Pendrive’s drive letter(i.e g: or h:).

Thats all you have done!. Now your CD/Pendrive is bootable.

• Restart the system which you want to bypass.
• Insert the Bootable CD of Konboot or Plugin your Pendrive. 
• Make sure in Boot priority CD or USB should be in the first option. If it is not there then hit F12 at the BIOS screen and choose CD or USB in the first option. Now the system would start with the help of konboot.
• Click Enter and wait until Kon boot will modify the memory to let you login without knowing a password in windows.

In windows XP it will directly show Desktop without showing any login screen. For Windows7 it will show login Screen but it doesn’t mean that you need a particular password for it. Just type any random password or simply hit enter without giving any password and after that you will get the Desktop. Now you can take the control of the Whole system, you can modify anything, copy data into your pendrive etc. Now next time when your friend login he/she will get the same login screen with same password. It means your friend will not get any kind notification about his/her system which has been hacked by you.