I have a dual boot in machine with windows7 and Ubuntu.
While I was installing Ubuntu, it prompted me for a name and a password 2 times. I gave a user name and put my password 2 times and wrote it down in a place so that I do not forget. When I reboot my system it shows 2 operating systems. When I go to windows 7 it works perfectly. When I go to Ubuntu it shows login and guest login. When I go to login, enter my user name and the password that I have written while installing, it shows invalid username or password.
I have uninstalled and reinstalled 3 times and each time same thing happens.
I am new to Ubuntu. Please let me know if anyone can help.