This is the software publisher's description.

Vista4Experts is kind of a treat for computer experts who don't want security center notifications, User Account Control dialogs, automatic Windows Defender scannings, automatic update installations (which cause you to reboot your system if you don't react quickly enough). People who want MSDN (or google) set as default search engine in the Internet Explorer search bar, who want the start menu power button to shut down the system instead of hibernating it, etc. These and many more fixes are included in Vista4Experts. All of these changes can be discarded, enabled or reversed. Vista4Experts is the first expert utility of its kind and works on every platform.

This is free software and so it is given without warranties, this means the use of this tool is at your own risk. I take no responsibility for any damage that may unintentionally be caused through its use.

I realize, of course, that many fixes in Vista4Experts lower Windows Vista's default security, but that's the difference between users who feel enough confident to decide what's best for their system and users who don't. Many of Windows Vista's security features are extremely annoying to many developers and other IT experts.

I even think it's bad that Microsoft didn't provide a permanent way to disable the driver signature verification and making it possible only for signed drivers to run on x64 (that if the user isn't in the mood of pressing F8 on every boot). This is my system and I want to run any driver that I want to! I'm pretty sure I won't involuntarily execute a rootkit, don't worry about me Microsoft.