CentOS 7 won't boot after change selinux configuration

[steveplabs]

My machine is based on VMWare Workstation 12.

I mounted a shared dir from win 7 onto my machine using cifs. Yet the mounted dir is not allowed to write. So I followed some instruction from the Internet, which I am regreting, to change the configuration file of seLinux to disable it, and reboot the machine. And that is everything happening.

Messages below is where the machine stuck:

[FAILED] Failed to start Login Service.
[FAILED] Failed to start Authorization Manager.
[DEPEND] Dependency failed for Dynamic System Tuning Daemon.
[FAILED] Failed to start Network Manager.
[DEPEND] Dependency failed for Network Manager Wait Online.

Please Help nd TIA.

[TrevorH]

Boot from the install media and revert your change to /etc/sysconfig/selinux. Check spelling for typos carefully.