What make/model of laptop do you have? Did it come from the store with this issue? Do you have any sort of remote access software installed? Where did you buy this system (what store)?
I Know what you are talking about it a a normal acer laptop with win7 i bought it from a normal shop nothing special
and yes i installed remote software and deleted it after i used it and i aso used mvware to run max os x on my laptop when installing it asked
me if it can create a user? and let it install and after that the problems started