Having had much interest in my solution to the black screen after login problem on Vista, I was encouraged to share what I know (even though it isn’t my own solution) about shutting off the requests for confirmation when running a program.
The name of this annoying feature is the User Account Controls. All you need to do to switch it off is search for “User Account Controls” – then all you need is the willingness once you’ve done that to keep clicking that you do indeed want to switch it off, even when it asks repeatedly whether you are sure, and suggests it isn’t a good idea. The links in this post will help if you need step-by-step and even pictorial guides. You can even get rid of the “Windows has blocked some programs” balloon.
With all these requests for confirmation, I am reminded of the piece of humor that has circulated (which is not an account of something that actually happened) about what it would look like if GM made computers and if Microsoft made cars.