I have a Lenovo ideapad 720s-14IKB and installed the 'critical' bios update. It seemed like everything worked, but after the reboot it still notified me of the update.
After further investigation, I saw that I indeed was still using an old bios version, even though I got a confirmation that the installation was successful.
Lenovo Bios update won't install properly?
nick
Be sure your bios is not password protected or locked in some way.
Guest
I just purchased a Lenovo and got the BIOS update and it killed my Windows 10 OS and had to reinstall it. My advise is don't install it.
Enigma