I was looking for a cheap FEA software and they recommend me Heron rotordynamics in another forum. It's cost less than 100 usd per month! depends of the plan and it's online (Link or info(at)heronrd.com).
Regards.
Try without windows 8! [dazed]
Suggestion: they recommend me Heron Rotordynamics software (at www.heronrd.com Link or info[at]heronrd.com). It's online and you don't need solving troubles with your operating system because you can use it with a web browser only.
Regards.