- Pen Drive with live bootable Linux.(any Debian distro) .
- Internet (where you need to install a package)
Change the windows administrator password or make it blank using bootable Linux pen drive.
For demonstration purpose, I will create a windows user in my PC with administrative account
(name – wifi and password – <anystrongpassword>)
Have the Linux bootable pen drive, boot it on your windows machine (In my case it is Ubuntu 15.10).
when you boot the bootable os get the file manager.In case of Ubuntu you find the below icon and open it.
Check your partition from that file manager,
check for your windows partition ,
(you can do this from your terminal also.)
find the folder(directory) name as windows change the directory to system32
(so you have to go to – Windows/System32/config/ directory)
system32 dir to config dir
config dir where you see the SAM file.
Right Click in free space and select the option “open the Terminal”
You can also go through the terminal also.
Check your internet connection
#apt-get update && apt-get install chntpw
While executing above command if you will getting error then (Don’t close the terminal
press the windows(super) button and type software update.
open software & Updates application
Right mark the Community-maintained free and open-source(Universe)
click on close button.
click on reload button so that it will automatically update the list.
Come back to terminal in same location.
run the command #sudo apt-get install chntpw
using below command you can check list of users
#chntpw -l SAM
where you see the following users with Admin rights.
#chntpw -u wifi SAM
they give option
with prompt :-
press 1 to make password blank
after that press q to quit the prompt, it will ask to save the Hives say y
Now reboot and remove the pen drive.
You will find wifi account password is CRACKED!