User Account Control (UAC) improves security for all users. The main goal of UAC is to protect the computer and reduce the exposure and attack surface of the operating system by basically starting with all users running in standard mode.

An administrator can run most applications, components and processes with a limited privilege but have the ability to elevate or increase the privilege for specific administrative related tasks and application functions. This added permission processes also prevents malicious software from running unnoticed on your system.

While turning UAC off may be necessary when troubleshooting QuickBooks Desktop issues, it is highly recommended that you turn it back on to prevent security risks on your computer.