The touch pad is not working

Hey hi Jessie, even I had this problem but later got to know that the fix was just a accident. GO ahead and press F6 or Fn + F6 (depends on Fn lock, try both). Also try to check and install any driver updates given on the Lenovo support page.

All this should work out, the question itself is quite basic so I don't need to type anymore, I hope this helps and if it doesn't, let me know in the comments and I will sure help you out. Bye and have a gorgeous day =)