Within 72 hours, you'll be able to take the responsible computing quiz, which will activate your UVa email account. After that, comes orientation registration! Exciting stuff!
There are no benefits, registration wise, to coming to an early orientation session. Seats in classes are saved for each session. So, a class will look full to a student at one session once the seats for that session are full. When the next session starts, seats will be released and the class will appear open again.
Also know that you will probably shift your courses a little bit during the drop/ad period at the beginning of the year. You aren't locked into the schedule you create at orientation. There will be room for adjustments once classes start in the fall.
By the way, keep an eye on the deadlines on the orientation page:
Housing Application Deadline: June 4
Student Information Form (CLAS) Deadline: June 16
Student Information Form (ARCH) Deadline: Postmarked by June 16
Dining Contract Deadline: July 28
Tuition and Fees Deadline: August 12
Student Health Record Deadline: Postmarked by August 31
Foreign Language Placement Exams For French and Spanish, take your exam online before Summer Orientation. First-year students interested in taking German, Latin, or Russian will be tested during Summer Orientation. Transfer students and all students needing to take any other language placement exams will be tested during Fall Orientation.
French: online before your session
Spanish: online before your session