Do nothing
Assuming you want to have a git repo in your home dir, you need do absolutely nothing, because:
C:\Users\myusername> git status
# On branch master
#
# Initial commit
This indicates that you have no current git history - your git repo is empty
#
# Untracked files:
# (use "git add <file>..." to include in what will be committed)
***All files listed***
This is listing files that exist, are not already tracked and are not ignored - it's listing everything because everything is an untracked file.
git add -A
You have not (going by the output of git status in the question) ran this command, at least not on this repo. If you do run this command the output from git status will be quite different. You will see:
C:\Users\myusername> git status
# On branch master
#
# Initial commit
#
# Changes to be committed:
# (use "git rm --cached <file>..." to unstage
***All files listed***
Read carefully the last two comment lines of this, and the output you have in the question. "Changes to be committed" and "Untracked files" are very, very different in meaning. In the question there is nothing added. In the above - everything is staged to be committed - and can be unstaged with git rm -r --cached .
Tracked files
Tracked files are files that git is monitoring for changes etc. UN tracked files is everything else - what you have in the question is probably a misunderstanding. You can demonstrate this to yourself with this example sequence:
cd C:\Users\myusername
rmdir /S .git
git status
# error message
git init
git status
# On branch master
#
# Initial commit
#
# Untracked files:
# (use "git add <file>..." to include in what will be committed)
***All files listed***