This is such a piece of shit. Obviously not enough thought was spent on design. The latest annoyance: How to turn off autorun (stuff running when you put in a CD) when not running with administrator rights? Actually, you can't. The settings you make on several overly complicated dialogs are useless. You just *have* to know that the only way to turn it off is to enable Turn off autoplay in the Group Policy Editor under Local Computer Policy/Computer Configuration/Administrative Templates/System.
Now that was an easy one. As all other security related stuff seems to be fucked up that bad it's no wonder how many windows installations are plagued by worms and virusses. You have a long way to go Microsoft.
Just don't get me started about all the 10000 things you have to suffer when trying to run *NOT* as an administrative user. Interestingly most open-source and free stuff works like a charm, it's the commercial stuff that is very much broken.