Personally, I love change. When Windows XP came, I embraced the big Start Menu. I didn't change the theme to look like Windows NT. I used Windows Vista and I started to love it as well. Trust me, I had some interesting workflows like not logging out of my account and locking my computer to save precious login boot time. I think I ran Windows Vista for 2 weeks straight! Windows 7 is perfect as far as I am concerned.
I have not used Windows 8 yet. The best thing to do is just to read all the reviews and prep yourself of these new changes when you are ready to upgrade your computer. I would probably wait until the next release of Autodesk products before jumping on the Windows 8 bandwagon.
My thoughts are to upgrade with caution and remember, change is the only contant.
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