I think the blog title alone gives you a good hint on what I am talking about. Yes, that Mac commercial (hilarious, by the way) where the PC's body-guard prompts for a "Cancel or Allow" on literally everyting PC does.
(If you have not seen this commercial before, then click the "Play" button on the image below)

 While I do think the commercial is very funny (These Mac marketing folks are good, darn good!), I must admit that it goes too far.
Just to set some context, the commercial pokes fun of the new Windows Vista operating system, which hosts a new and improved security system.

Windows Vista does not ask for your permission when you start an application, browse the web, send emails, chat on IM etc. These are recognized by Vista as common tasks that users perform on a daily basis. If Vista did ask for permission on such common tasks this blog would be looking a lot different. Trust me.

So, is "Cancel or Allow" a lie? - Not quite.

Windows Vista, does indeed prompt its users with a "Cancel or Allow" dialog box, but not for everything you do - as the commercial implies. The question to allow or deny, for instance, is only asked when you try and change your network settings, change shared folders permissions, install new softwares and Plug-ins etc. But this is a good thing!

I don't know about you, but I am an IT administrator. Not professionally, silly! At home!
I have to support my wife, daughter, father, mother, in-laws and on and on and on. Everyone I know uses me as their personal IT administrator, for FREE! - What a deal!. 
Most of them are administrators users on their PCs. They are allowed to do anything they desire (and so do hackers) on that system without knowing the concequences; except for calling me in the middle of the night when they can't get to their emails!

So considering the amount of time this feature of Vista is going to save me by not having to support every Dick, Tom and Harry, I can actually tag this commercial as a plain marketing gimmick - A.K.A. a lie!

Having said that, this commerical below is very true!

Sahil Malik, has also written an awesome and funny blog post on this as well.