I would recommend a clean install. Your device probably has a built-in system restore utility.
https://duckduckgo.com/?q=lenovo+clean+reinstall&t=brave&ia=web
Back up all your important files and run it.
I do it once a year on all my computers.
Thanks for the reply . This PC is just 6 months old . I purchased the best warranty plan for 3 years . I feel Lenovo Japan should help me through this . My Japanese isn’t good enough for me to deal with Lenovo on the phone re: computers so my wife has to call . She knows as little as I do about them ! Hehe...Anyway , I’ll see what they say THIS time and post back later .
bkmk