As an aside - If you are a computer administrator, and you still want to keep UAC for standard users, there’s an easy way to turn it off for administrators only.
Just open Local Security Policy from Administrative Tools in the Control Panel.
Then go to Local Policies > Security Options.
Scroll all the way down and find where it says something like: USER ACCOUNT CONTROL: Behavior of elevation prompt for administrators in Admin. Approval Mode;
Double-click it and then click the drop down list and change it to “elevate without prompting.”
UAC should no longer annoy administrators.