Windows 8.1 password issue

[robert1]

So
at the weekend, my computer crashed on a game, task manager wouldn't come up but it let me log off through ctrl alt del, and ever since then, as soon as I start it up, it says "The user name or password is incorrect"...so everytime I have to put my Hotmail (windows live) password in, and its fine, but password hasn't changed and never had this before I had to log out (only ever automatically gone into only account and shut down before) any ideas on fixing this so I don't have to enter a password everytime?

 

[Grayfox]

There is a way to crack it, but you need a linux live CD to do it.

you can do it one of 2 ways.

1: Use a linux live CD that is just made to reset passwords which may or may not work.

2: Use a linux live CD to change the name of 2 system files.
If you change Utilman.exe to utilman.exe.old and cmd.exe to utilman.exe in both system32 and sysWow64 and then reboot.
You will go to the login screen, then you just click on the button on the bottom left which is for ease of access.
But since you made the ease of access button link to cmd.exe which is the command prompt it will open a command prompt.

Now you can use the netplwiz or control userpasswords or control userpasswords2 command, this will bring up the user accounts window.
Just highlight the account you want and click on the reset password.

Now you just have to rename the files you changed in linux back to what they should be.

2a: Using the method above, you can try the net user command.
It is used in the following manner.

net user grayfox password

This will set the password for the user grayfox to password