1.) When you uninstall bricopack does it really deletes everything. I visited the forum last month I saw a problem in one of the people who uninstall the bricopack some files remained?
 
 
2.) Does in the next version has a searchbar, transparent Start menu and transparent theme, back and forward button are like in Internet Explorer 8, vista bootscreen, and a system properties?
 
OR
 
The next version will be style Windows Seven?

If everything is done right then uninstalling the bricopack doesn't create any problems.You must install/uninstall the bricopack in Safe-Mode.
 
About the next version, there's no such telling.Keep checking the news section for any updates