New
#11
UAC's purpose is not to judge if a user's 'allow' action could be bad for the system. It is just a layer of security put in place to stop changes being made to the system without the user's knowledge and intervention. Other programs are installed on most computers that will hopefully detect, warn against or prevent bad moves being made.
The UAC alert still comes up whether running as Admin or a Limited User. A difference with a Limited User account in W.7 is that a password is needed to allow the process to run. Entering a password can be a nuisance for a person who is the only user of a computer because password or not, a conscious decision has already been made to run the process. For this reason, I prefer to run as Admin and not to be troubled by a password being needed.
However, I still think it best to have UAC operational purely because it does give an alert that a change to the Admin account is about to take place. Nothing unknown about is going to happen. An extra mouse-click seems a small price to pay for this layer of security.