What if after I installed Unity 3d I kinda messed up bootcamp project, is there any way to get it again without installing Unity all over again?
erm you can go to the asset store and download its completely free here’s the link: Bootcamp | Templates | Unity Asset Store
Download 3.x and install it. This will give you the bootcamp demo.
For those looking for the demo: I’ve uploaded it to github (with Unity Technologies permissions). The project is upgraded to Unity 4.7.2.
You can find the project here:
https://github.com/OldUnityDemos/Bootcamp
What's the danger of reinstalling? You can always specify a new installation path and extract it that way.