How to Reset Administrator Password in Windows XP, Vista, 7..

Step1: Download Administrator Password Reset software from given link.
   
       Bootable CD  Version:        Link1(18MB)       Link2(4MB)

        Bootable USB Version :    Link1(18MB)        Link2(4MB)

Step2: To make a bootable USB drive / CD:
   
  I.  BOOTABLE USB DRIVE:
i. Copy all files onto the USB drive.
   It cannot be in a subdirectory on the drive.
   You do not need delete files already on the drive.
ii. Install the bootloader
   Start a command line window (cmd.exe) with "run as administrator"
   From the command line, run the command like this:

f:\syslinux.exe -ma f:     (f is Drive as your PC)

replace j with some other letter if your USB drive is on another
drive letter than j:
On some drives, you may have to omit the -ma option if you
get an error.
If it says nothing, it probably did install the bootloader.

II. BOOTABLE CD DRIVE:
  WAY 1:
    i. Just simply download and Install Power ISO from given link:       Download Power ISO
    ii. Open open CD password reset.iso .
    iii. Then Burn CD.

WAY 2:
    i. Open CD password reset.iso with Nero Smart Essentials.
    ii. Then Burn CD


Step 3:  Before restart your PC just this Video.                               Show Video
Restart your PC and select Boot menu. (CD/USB) and follow the Video.