I downloaded autodesk revit architecture for my graphics class for school. the file is on my computer but i have to go into my computer files to open it. when i do finally click on the setup icon the program pops up with the install on this computer button. after i press that though it downloads to 5 out of 8 remaining then freezes. ive tried restarting my computer mulitple times but im getting frustrated now cause i dont know whats wrong or what to do.