After doing the in place upgrade , where do you get your licence key?

You don't. It's stored on the cloud. Apparently there are some utilities around to get it, but apparently people have found these to be fairly generic codes.

So it's not a legit practice or code.

From what I have read, it is sort of somehow tied to your machine (motherboard perhaps)

mudgel
After doing the in place upgrade , where do you get your licence key?

Because its an upgrade your key comes from your older OS. Every one of the upgrades I did didn't ask for a key. All are activated too. 

Doktor Avalanche
You don't. It's stored on the cloud. Apparently there are some utilities around to get it, but apparently people have found these to be fairly generic codes.

Every key finder should work. I have ones from the XP days that work. Bellarc Advisor will post your key and other serial #. 

Doktor Avalanche
You don't. It's stored on the cloud. Apparently there are some utilities around to get it, but apparently people have found these to be fairly generic codes.

kitekrazy1
Every key finder should work. I have ones from the XP days that work. Bellarc Advisor will post your key and other serial #. 

Apparently the product key numbers it finds is generic. i.e. There are only about 10 few product key numbers that is being generated for everybody. So I would not rely on that. I seems auth is 100% fully going through the cloud unless you paid for Win10.

So then after having done an in place upgrade how do you then do a complete new install where you start with a blank disc when you don't actually have a licence key to enter where it's required.

Or is it that after having done the in place upgrade you can somehow do a full install.

it's tied to your machine as far as I know, some identifier etc, this is from what I have read.

Or is it that after having done the in place upgrade you can somehow do a full install

 I am led to believe so. just grab the iso and go go go
 
I never did a clean install myself, only 3 in place updates and 3 very clean rollbacks

I have a laptop with 8.1 that, although all updates have been done, will not show the get windows 10 icon.  If I run the microsoft win 10 icon troubleshooter it says a certain file is not installed and offers me a link to install it.  When I do that it says it can't because that file IS already installed.  This lappie has no cd/dvd drive.  Any suggestions as to how to get that dern icon???