Full HD reformat?

Yes. Hence the term fresh install....

Open Control Panel, go to power options/choose what the power button does and make sure it is set to shut down, not sleep.

Found this, Jim. Dunno if it'll help, but using Safe Mode to help repair things sometimes will.

http://www.wikihow.com/Fix-Windows-Shutdown-Problems

*edit - What Wiz suggested as a possible solution may also work...I saw some stuff about that online, as well.

Thanks guys, looking into it. I will let yuns know how it goes.

Unplug it 

Al, quit monkeying around.....    

ALMonty

reply 6

Unplug it 

seems like the logical thing to do.

Greg, that is bad for the PC. Pretty much a crash when you just unplug one. Can't do that repeatedly without damaging the rig. 

Wiz, your suggestion didn't help. Thanks though.

Will try the other suggestions when I get the chance.

RedneckDude

reply 7

Al, quit monkeying around.....    

 

Sorry I couldn't resist.

my 2 cents:

Had this issue on my old machine...never solved it. -After it all had closed and only the fans were running I always pressed the actual shutdown button on the machine for a few sec to make the fans stop... I Read in some forums that it wasn't that bad for it though cause most things were actually shut down, only the fans were running....sortof

I can feel the hard drive spinning. More is running than just the fans.

Since you're not having much luck -

I had a look at the MS Knowledge Base and it looks like it could be one of several things.  If you want to poke around at it:

https://support.microsoft.com/en-us/search?query=Windows%2010%20won%27t%20shut%20down

I got the impression that it tends to be related to Win10 talking to hardware.  Some things I saw that people had luck with:

updating BIOS (or even re-flashing it)

updating graphics drivers

updating APCI drivers

updating motherboard drivers

disabling FastStart

It all gives me the impression too that it might not be a bad idea to go into the BIOS and double-check the settings.

Good hunting.

Did you have a USB device other than your mouse & keyboard plugged in when you installed Win 10 ? I had a similar problem except my screen didn't go black it just stayed on the "shutting Down" screen with the little spinning circle. Someone tipped me that sometimes external USB devices will cause a corrupt install , that includes wireless USB network adapters. I unplugged all USB devices except my keyboard and mouse and reinstalled Windows 10 and never had another problem with it.     --Ace--

I know, but sometimes you just have to bite the bullet.