Fiddler on Windows 10

I've previously written about Fiddler here:
http://stgaup.blogspot.no/2013/03/fiddler-tricks.html

When installing Windows 10, you create an account which is not connected to any external host in any way. Later however, you probably associate your account/Windows 10 instance with your Microsoft account. Afterwards you will use your Microsoft account when logging in.

In my previous post I mentioned one could make Fiddler work by running the app pool on the same account at that on which Fiddler is running (and which you are most likely logged on to).

But there are now two accounts it seems:

• the one you created while installing, 
• and the Microsoft account,  

so which one should you use when running Fiddler?
Turns out it works with the Microsoft account.

Username: someone@hotmail.com/outlook.com/live.com etc.
Password: the password associated with the Microsoft account.