Licence Request File

When you install Unity, it will ask you to register it online or offline, using a license request file that you send to https://store.unity3d.com/manual so you can get a license from Unity to verify your product. To get a request file to send to Unity, click "save request file" on the registration window and save it on your computer somewhere. After that, you send it in and get a completed license that you use by clicking "read license" in the registration window and finding the license. After that, you should be able to use Unity v3.4.0! :)