turning off the welcome screen makes windows pops up a messa

When i turn off the welcome screen in control panel --> users windows gives me a message everytime it boots about: you can't use fast user switching when the welcome screen is disabled yada yada bla bla (something like that).

Is there any way to disable that message? I'm the only one using this computer s it's pretty useless to show that welcome crap every bootup.

Thanks

Turn of the fast user switching in control panel --> users ?

That's just the problem. When i turn off fast user switching it pops up that message. If i turn it on it doesn't poup anything.
Now the problem is, when disabling the welcome screen, fast user switching gets grayed out, and disabled...