This question already has an answer here:
- How to rename user folder in Windows 8? 9 answers
I just re-installed Windows 8.1 Pro and I noticed something strange about my home directory folder
C:\Users\Username. The name of the folder instead of being Username is Usernam_000
C:\Users\Usernam_000. Why is that? Is this normal behavior? If not how can I change its name?
As I have said in a comment all of these answers in the questions you provided as duplicates just say ways of changing the name. My principal question is why this happened. I want a way to change the name only if it is a normal situation and not a problem.
As I am really curious about this "problem" I did another installation of Windows 8.1. The same thing happened again, although I deleted the partition and formatted it again.