Blank username and blank password

I am facing a problem with my window XP operating system.
Anyone can log in with out typing any password and user name i.e
using blank password and blank username. I went to suer setting but i could not figure out.Can you suggest me how i can fix this?

TMD –

First let me stress this site does NOT tolerate swearing of any type, I edited your post to what is acceptable. We fully understand your frustration on how computers can be and how they may make you want to pull your hair and spit nails. Firewall.cx is NOT that type of forum for Jerry Springer mentality; we are a very large site that’s viewed in many countries and businesses, we want to project a fun and respectable attire.

Now to your issue.

To set Windows XP to challenge with passwords follow these steps.

1) Go into Control Panels.
2) Select User Accounts.
3) Select “Change A Account”.
4) Click on the account you want.
5) Click on “Create Passwords”

See picture below for reference. Good Luck

Hi, I appologize for that.
I have done it before. But it did not work.
Currently i have one Admin and one guest login.
But it can also log in with out user name and password.

Mmm, you could also try right clicking my computer >> manage >> local users and groups >> users

Then disable guest account, and reset password for Administrator.

Otherwise maybe you have some form of anonymous logon allowed.