Lost Windows password
Recover lost Windows password
If you append to "loose" your windows password. Here is a simple trick to reset it, you only need a physical access to the computer in order to boot it on a Linux system:
Get an administration command console
Let's replace the sticky keys executable file with a command one:
- boot your computer on a your Linux
 - mount the C partition file (for instance sda1) with 
mount /dev/sda1 /mnt/ - backup 
cp /mnt/windows/system32/sethc.exe /mnt/windows/system32/sethc.exe_old - replace 
cp /mnt/windows/system32/cmd.exe /mnt/windows/system32/sethc.exe - boot on Windows
 - press 
Shift5 times 
Change the user password
In the administration console just type:
net user my_user my_new_password
Done
You may want to replace back your sethc.exe file with the original one:
copy c:\windows\system32\sethc.exe_old c:\windows\system32\sethc.exe