Solution I found thanks mainly to Aravian and this Forum:
- I went to Grub Recovery Mode
- Opened the TTY (Root System)
mount -o remount,rw /
systemctl disable NetworkManager-wait-online.service
sudo nano /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash", Deleted "quiet splash"
sudo update-grub - Back at Grub Recovery Menu => Resume Boot
Thanks a lot Guys!!!!