Reset your Windows xp/vista/7 administrator password Without knowing it,and very simply,requires only a simple command.
Just open cmd>type>cmd and type: net user *yourusername* *newpassword you want to 
set* and press Enter,and it ok now.
See the screen shots!
Note:Reset Windows vista/Windows 7  password may need admin rights.just run the cmd as 
administrator.
Hope you  have enjoyed the trick! Take care.. of it! ;)
 


 
 
