I have noticed that if I close down the computer and restart within a short time (up to 30 minutes) there are no problems, but when I shutdown at night and try to turn on in the morning I need to do a hard restart.
I have disabled fast start up. Set all button and lid settings to "turn off computer"
A Google search said that it could be a RAM problem, but this is a new RAM module and a Lenovo Vantage scan showed no problems.
I still have my old hard disk installed and there were some bad, unreadable sectors on that, but I can't imagine that that causes this.