Can not log on after install

[Joe Luzanski]

After a lot of problems with the installer (community vs commercial) I was able to install MySQL 5.6-15. I am able to start MySQL both as a service or from the command window. However I can not log on as root.
All of these fail:
mysql -uroot; mysql -uroot -proot or mysql -uroot -pmysql.

I can not log on even if I use:
mysqld.exe --defaults-file="K:\\MySQL\\MySQL Server 5.6\\my.ini" --skip-grant-tables

I am at a loss what to try next.

my.ini contains:
port=3306
default-character-set=utf8
basedir="K:/MySQL/MySQL Server 5.6/"
datadir="K:/MySQL/MySQL Datafiles/"