How to import assets(package) that come with unity?

How do i import the assets that come with unity into an existing project?When i just copy and past the assets i have to do a lot of resigning of textures and a lot of the scripts give me errors.I looked for the asset someone for me to just import but i cant find it.

You can pick and choose what asset packages you want to import when you create a new project, or you can import them one at a time into an existing project. To do the latter, go to the top menu and select Assets, then Import Package… The standard assets packages will be located in the Application folder in a “Standard Assets” folder. Under Windows 7 it’s in the Programs(x86)/Unity folder

Yes i knew about the importing at the beginning but was having troubles later on down the road.Thanks for the help.This has been bugging me for a while!