Should you not be able to downgrade, don't be intimidated by Windows 8. Yes, it's different, but it's really not that bad.
People are having quite different experiences and impressions - just ask me and Inland! - but, once you figure out a few tricks, it's OK. If this helps, I have a very close internet friend in California who put Windows 8 on her computer and she just absolutely loves it. The kicker is that she is 88 years old!
If life gives you lemons, make lemonade. If life gives you tomatoes, make Bloody Marys.