That's bad news.
If you'd like some help, I suggest providing some details in your post.
But better yet, you should contact your instructor.
Oh, go ahead, I'll give you permission. But, if it catches on fire, you're on your own.
Cameron
permission to install?
permission to run?
permission to use the computer?
missing admin privileges?
trying to use it from the guest account?
missing activation code?
...
There is no way to tell what your problem is given the sparse information.