Great job on solving the issue.
Be careful when fiddling with the registry, changing settings (especially so programs such down faster, as you say), could make your system unstable. Best to leave it be really, very rarely would this be the root of your problem.
Originally Posted by Dervisher
So far to fix this issue i've tried disabling all the non-microsoft services and startups, and changing the registry a bit to kill apps quicker on shutdown time. Both startup and shutdown are still horribly slow...
As you have solved the problem, (nice job), could you set the thread as solved please, by clicking on Thread Tools at the top of the page. Thank you.