User Account Control, or UAC, is a security mechanism built into Windows. Here's how to change its protection level and whether you should disable it.

The first thing I did after I installed Windows Vista was disable User Account Control—it’s pretty much the most annoying OS feature I’ve ever dealt with. Microsoft’s Chief Security Advisor in ...

Microsoft has fixed a known issue caused by the August 2025 security updates, which triggers unexpected User Account Control (UAC) prompts and app installation problems for non-admin users on all ...

Microsoft points out a side effect of the August updates. User account control prompts appear when MSI repairs are started.

User Account Control (UAC) was developed to address concerns that viruses and malware can do much more damage to a system when a user is logged on with administrative rights on the local machine, than ...

Dennis O'Reilly began writing about workplace technology as an editor for Ziff-Davis' Computer Select, back when CDs were new-fangled, and IBM's PC XT was wowing the crowds at Comdex. He spent more ...

Microsoft's User Access Control (UAC) can be a powerful tool to protect systems from malicious software, but many people misunderstand what it can and cannot do. Knowing the power (and limitations) of ...

Microsoft has fixed a known issue caused by the August 2025 security updates, which triggers unexpected User Account Control (UAC) prompts and app installation problems for non-admin users on all ...

Microsoft confirms that there is a problem in the recent security update KB5063878. Specifically, it concerns an error that occurs when performing repairs ...