Like I said it asked for me for a password to enter into the admin account. I tried many passwords yesterday. But no success.
Today I tried to enter into it without typing any password and to my surprise it let me in. I never guessed it would be like this.
I restored my system and everything...
Here is what happened.
I went to administrator tools > Computer management > Local users and groups > Users.
Now I double clicked on the main user account. Then I switched to the 'member of' tab. I deleted the things whatever present over there.
Then I restarted the system. Now I can only...
