I agree with Iroken22 on this one... Upgrading is in my opinion the worst way to install a new OS.. I always recommend formatting your HDD and doing a clean install..

As iroken22 said, this way you get a fresh start, useless files are not brought over from the previous install, and in general your rig will behave much better this way than if you'd done an upgrade..

Plus I find by doing a clean install instead of an upgrade it just feels more like your using something new... Alot of the support questions in this forum are from people that did upgrades rather than clean installs...
