Solved! Go to Solution.
Solved by ukdxb012. Go to Solution.
This finally worked!! For anyone else with this problem I did pretty much all of the above. I created a new user with full admin access. Turned off UAC settings, i already had write permission on the temp folder, and then finally disabled Windows Secerity Essentials. Then I browser downloaded Revit and got no errors during iniallization. It is still installing but this is the farthest I havve gotten with the program so far.