How To Know If The Software With Your New Computer Is Legal Software

How do I know if the software with my new computer is legal software?

Generally you don't have to worry about that if it's a Mac based system. There is a lot of counterfeiting on Windows based systems, so you want to make sure that you see the Microsoft hologram on the Windows CD that comes with your system. Also, you should have a product key with a logo next to that product key, that when tilted shows a hologram of legality. If that hologram is present you can be fairly certain that the product is authentic.