Can't start Windows after install Linux

[coopstah13]

your sudo password is the same as the one you logged in with, make sure you are typing it right (it will not echo anything to screen as you type it either)

[z7nz]

your sudo password is the same as the one you logged in with, make sure you are typing it right (it will not echo anything to screen as you type it either)

Thanks I "passed" the password part, but I got this..

nguyen@nguyen:~$ sudo blkid
[sudo] password for nguyen:
nguyen is not in the sudoers file. This incident will be reported.

[Jonathan183]

what do

sudo -l
cat /etc/group

report?