I have an 07 1,1 Mac Pro and I was able to purchase a $30 student Windows 7 Home Premium. I have the download version and did not go through BOOTCAMP and did not do a clean install. Everything went great until the very end when, on its last restart, it told me that it could not update and it would reload to the previous version, which is Vista Home Premium and both 32 bit. I was just wondering if anyone has advise for me that could fix this or why it didn't work? Thanks.