Windows Vista has the built-in ability to automatically reduce the potential of security breeches in the system.It does that by automatically enabling a feature called User Account Control (UAC) .It is biggest irritation in Windows Vista , especially for the people that do a lot of tweaking (like me) .

Note: Disabling UAC will lead to a less secure system, so be warned.

Following is the steps to Disable User Account control(UAC) in Windows Vista

1) Launch MSCONFIG by from the Run menu.Go to the Run Command and type MSCONFIG

2) Click on the Tools tab. Scroll down till you find “Disable UAC”. Select “Disable UAC”

3) Press the Launch button.

4) A Command window will open. When the command is done, you can close the Command window.

5) Close MSCONFIG and your’e done. You need to reboot the computer for changes to apply.

In case if you want re-enable User Account Control you can follow the above steps by selecting the “Enable UAC” and Clicking the Launch Button.

Dissatisfaction with the original version of Windows Vista has prompted an overwhelming majority of users to download and install the operating system’s first service pack, according to a group of researchers.

Industry watchers at Devil Mountain Software said 86% of Vista users had installed SP1 as of the end of July, compared to the 69% of Vista users that were running SP1 at the end of April.

“There was tremendous pent up demand for Vista SP1,” said the researchers, in a blog post Thursday.

The high adoption rate is “either due to customer dissatisfaction with the product or because users were convinced of its benefits from all of the media hype surrounding its release,” wrote the research team.

Microsoft made Vista SP1 available as a free download from its Web site in March. It’s also been slipstreamed into boxed versions of Windows Vista available from Amazon.com and other retailers.
Source: InformationWeek