A # as the first character on a line means it’s a comment, so it doesn’t do anything have you tried removing the # already???
E.G.
# the following command will destroy your NULL device:
dd if=/dev/zero of=/dev/null
# the following command will NOT destroy your NULL device:
#dd if=/dev/zero of=/dev/null
Please read this:
Especially the Linux has multiple kernels section and then install an LTS kernel and boot that.
