1) Reboot your system.
2) When GRUB comes up type e .
3) Now select entry that begins with kernel.
4) Add then end of the kernel entry type either s or single, now hit enter. ‘kernel/ single’ make sure to add a space after kernel/
5) Type b, the box will boot up and now you can type in the cmd prompt ‘passwd root’.
This will reset the password to whatever you like.
