You are trying to install a 64-bit edition of W7 (amirite?). My advice is to install the 32-bit version and then upgrade to 64-Bit version.
I had this issue when I installed an SSD in my laptop. It is some weird bug.
I was runing but a 32bit wins7 but it still can see my hdd.only mint sees it when its liive.none not even xp.does this mens its crashed.