Lenovo laptop didn’t boot after mid revise install
When you restarted, were you aware there was a new cumulative keep informed being done? The possibility of you interrupted that larger install, exists.
What to do about it… try again tomorrow and maybe knowing another keep informed could be in progress may help you value what might be happening. Try again tomorrow and then make a decision as to what you are willing to do to recover the structure if it does
not come off itself out.