The higher the expected help

So many questions. Lets start with these:What operating system are your running?Is your system 32 bit or 64 bit?Is your copy of Autocad 32 bit or 64 bit?Does your computer meet the minimum system requirements for Autocad Architecture?What are your full computer specs?Have you read the installation log file? What does it say?Is this a legal copy of Autocad or one that was downloaded from a torrent site?

That is an excellent set of questions Cad64.