User Account Control


Abbreviated as UAC. In Windows Vista, User Account Control is a feature that was designed to prevent unauthorized changes to your computer. When functions that could potentially affect your computer’s operation are made, UAC will prompt for permission or an administrator’s password before continuing with the task. There are four different alert messages associated with User Account Control:

Windows needs your permission to continue
A program needs your permission to continue
An unidentified program wants access to your computer
This program has been blocked

Read Also:

  • UART

    Pronounced u-art, and short for universal asynchronous receiver-transmitter, the UART is a computer component that handles asynchronous serial communication. Every computer contains a UART to manage the serial ports, and some internal modems have their own UART. As modems have become increasingly fast, the UART has come under greater scrutiny as the cause of transmission […]

  • UAS

    Short for user-agent server. In VoIP, a server application in an SIP system that accepts the requests from a UAC and generates an accept, reject or redirect response on behalf of the user. The combination of the UAC and the UAS is called the SIP user agent. The SIP user agent allows peer-to-peer calls to […]

  • User Acceptance Testing (UAT)

    Short for user acceptance testing, typically the final phase in a software development process in which the software is given to the intended audience to be tested for functionality. UAT is either done by making the software available for a free trial, typically over the Internet, or by using an in-house testing panel comprised of […]

  • UBB

    Short for Ultimate Bulletin Board, it is a popular Web based bulletin board system (a type of Internet-based discussion forum). Internet users who post and use forums based on UBB often see the message “You may use UBB code in your post”. UBB code is a simple variation on the common HTML tags that allow […]

  • UBE

    Short for unsolicited bulk e-mail (spam).


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