(I suspended it while I tried this bypass. Windows 8 is a major release of the Windows NT operating system developed by Microsoft. This is why we enable encryption on all our drives. There are even ways to reset Microsoft account passwords by using this method. Mitigation Pretty severe stuff: disable CD/DVD, USB, PXE booting of the system in BIOS. I have used this trick before when users have forgotten their passwords. As miles stated, the MBR is not changed by Kon-Boot. I actually just tried this on my machine to confirm and it still works.
Here are 6 different ways on how you can install Kon-Boot to a USB flash drive and use. Although I also just enable the built-in administrator with net user and then boot and login. The free version of Kon-Boot only supports booting from CD or floppy. You can still use the rename cmd to utilman. If they user has a Microsoft account, they just need to change the password at: I usually boot to install media, mount the registry from the drive, and manually turn on the built-in admin account, then start the computer normally and change the password from there (remember to disable the built-in admin account when you're done): one is the self burning TRK (exe) and the other is the ISO image which can be burned to. Then add user and add user to local admin group Once you have downloaded Kon Boot, create a Kon Boot CD or USB. Replace the file utilman.exe with cmd.exe.