I have tried all those things and no luck. I have tried taking full control of the crysis folder and then tried installing it with no luck. The permission settings on the folder do no stick they just go back to what they were before with everything unchecked.
I tried doing the troubleshoot compatibility thing a whole bunch of different ways with the same result. Windows 7 doesn't let me pick the settings I want with regards to compatibility it just says its trying it this way then if it still doesn't work its going to try it this other way etc.
Does anyone have the sandbox editor working in windows 7 rtm 64bit?