Won't shut down

[RWL4]

HP All in One with Windows 10 (64 bit). I click on Windows in lower lefthand side of pc, then I click on the power button and nothing happens.  It doesn't shutdown.  What do I do?

[Prométhée · Accepted solution]

Hello
you mean, that even if you keep pressing the on/off button, even after a few seconds nothing happens?
Was something special done just before?

[RWL4]

Promethee - Thank you.  It was a simple fix, but I realize that I am having problems with my Norton 360 Security.  Last night I had run a Full Scan (Norton) and that didn't seem to quite finish, yet at one point it did.  After that I was having issues with several things - not responding, couldn't scroll, difficult time getting Settings to open.  When it did open I couldn't  just click on System, I had to type Power into the search bar.  Finally I tried shutting down the normal way and  that didn't work at all.  I went to bed and this morning my PC was still on.  It didn't go to Sleep etc. so I ended up touching the on/off power button and it shut down.  I started it up again and then Norton said I had to do a Backup.  So Default Backup was performed and after that Norton Alerted me that they had to do a Fix to the backup.  That was 5 hours ago and it still was Fixing.  I finally restarted the system and here we are.  I'm sure Norton will be waiting for me after I  am finished responding to you.  Again, thank you.  RWL4

[Prométhée]

Ok, so in this case, you should check the Norton settings, and don't let it do what you want.
modify the parameters, so that everything is done at your request, and / or the time desired by you, so as not to be blocked, if you do something, at the time when it must do analyzes, or backups