I have a confession:
 
I am an idjut.  I rebooted at 5:30 this morning, only instead of getting as far as Windows 8.1, my computer launched into automatic memory testing.  
 
With an instant and deep concern, I rebooted, and again it started running memory tests.  NOT a good way to start a day that had a bunch of time demands for completing work using the computer today.
 
Soooooooo, I let the memory testing proceed.  3 hours later, it completed its first set of testing of 32 GB of memory - only to find zero errors.
 
It was only at that point that I thought it through.  Sure enough, what had happened was that late last night - in the wee hours, I had loaded a blank DVD, with an intent of burning a disc of data to give to a friend of mine, but since I was also playing Call of Duty Black Ops 2 on my other TV on my XBOX 360, I completely forgot I had put the disc in.  As I was sitting there wondering why the memory test had completed with no errors - I recalled that the blank DVD had never popped up the little window asking me what to do with the disc.
 
Sure enough - the blank DVD was NOT blank.  It had Memtest loaded to auto-boot and run, but I had forgotten long ago to ever label the disc.
 
DOH!!!!!!
 
 

Into every life a little Idjittery must fall. Granted, that's usually because I can't roller skate and I tend to fall down stairs at random intervals, but it's still true. 
 
Who among us has not so booted? Just be glad it didn't install something nasty without your knowledge.
 
(I think my Paranoia classes are starting to affect me in unexpected ways.)

lol

Awesome, you've found your missing memory test DVD!

It was clearly checking the wrong memory....

I don't know. He remembered it once he found it. It looks like it works. Let's give him a good shock and then see if he forgets that he found the disc. 
 
Hey, Bob! We've got something to show you. Come on over here and sit in this special chair.