I only have windows 7 32bit, Did not realize when I was excited to finally purchase this version of x-plane the I needed 64bit but felt relieved when I saw it had an exe for 32bit. Of course came back down to earth when the program failed to start. I installed it on the desktop which is the default path the installer placed it, It did update right after I installed it and I did not try to run it till after the update installed. I even tried to update it again besides and it still did not make any difference in getting the program to start. The PC I have does just have a bit more ability than the bare minimum requirements listed on the x-plane website.