Ubuntu shows windows username?

[gtanmay]

i am posting for first time, sorry if this is not the right place...

i have windows 7 username "lolax" and no password...
i installed ubuntu 12.10 in d drive using wubi...(inside windows which can be uninstalled from control panel) when installing it asks username and password, i entered "tanmay" as username and some password... and then installation started...

after the installation there was only 1 username of ubuntu "lolax" and the password was exactly which i wanted...
i tried to add user "tanmay" but it says user already exists...

plz help.. i want to keep only one user "tanmay"...

thanks in advance

[zombifier25]

Just a guess, I think "lolax" is the display name and "tanmay" is the real username. Get inside a terminal, check the prompt and see what is your real username.

[gtanmay]

terminal says tanmay@ubuntu:~$

is it possible to change display name...???

[zombifier25]

Click on your name in the top right, choose "User Accounts", click on your display name and edit it.