Kali Linux Frozen Persistence

Question

I was looking for ways to be able to turn off my live boot of Kali Linux (whenever I try to power off, halt, logoff, etc; my computer freezes until the battery dies, unless hard-killed, most likely to some hardware configuration in the BIOS). I was following these two links:
https://forums.kali.org/showthread.php?26434-Kali-2-0-Will-Not-Shut-Down-or-Restart https://forums.kali.org/showthread.php?27173-Solution-for-Reboot-Issues

These two links talked about adding lines of text to two different files, adding blacklist snd-hda-intel > /etc/modprobe.d/intel-microcode-blacklist.conf and blacklist nouveau > /etc/modprobe.d/nouveau-blacklist.conf. After rebooting, I boot into persistence, everything loads up fine until the desktop loads, then everything is frozen and there is nothing I can do. My question is, is there a way to somehow maybe edit files from grub on the boot menu?