Windows 8:
I was always dubious about upgrading to Win 7 from my Win XP Pro, on account of it not supporting much of my old hardware drivers, and software. But most of Win 7 works OK, including my Flight Sims.
(I now have Win XP Pro installed on a spare HDD for those problem cases).
Th bit that worries me again...
If problems are found with Win 8, I don't know if its possible to
down-grade from Win 8 to Win 7 again?
Every time we "upgrade" the Operating System, the availability/suitability of suitable "Drivers" for our Hardware and Software always rears its ugly head!
Paul...Windows 7 Home Edition... 8-)...!
...I suspect that Uncle Bill might not be in favour of..."Downgrading"!...

...!
Win 8.1 64-bit. DX11. Advent Tower. Intel i7-3770 3.9 GHz 8-core. 8 GB System RAM. AMD Radeon HD 7700 1GB RAM. DVD ROM. 2 Terra Byte SATA Hard Drive. Philips 17" LCD Monitor. Saitek Cyborg X Fly-5 Joystick. ...and a Briggs and Stratton Petrol Lawn Mower.