In most of the cases you don't have to enter all the data again. You can simply export the data you have using File > Save or File > Export and save the content on a file on your desktop. Later you can transfer that file to the other PC using a flash drive, a cloud storage service or using network.
The same thing you can do for the software as well, but I recommend using a flash drive to transfer the application from Program Files to the new PC.
I've recommended this way because I couldn't download the Test Generator from anywhere.
Also, when you migrate the application, go to Start > Run > regedit and expand HKEYLocalMachine > Software > ExamView to a .reg file. Copy the same file on the new PC and merge it into registry. Copy the installation folder to the same place and it should work.