Hotmail Auto sign out


New Email
Hi can someone please help with a small problem I have

When I log into and then I close the web browser without manually signing out, next time I go to log in it automatically signs me in.

I know I can manually sign out but is there a way to do this automatically in case I forget (Say on a public computer)

I do not have the remember password ticked so why does this happen

Also I have two email accounts a and a is it possible to merge these into one account