I have a Toshiba P105-S921, older laptop that has a core duo intel, a gforce go7900 video card, Intel Core Duo T2400 1.83GHz, Windows xp 32 bit. I want to upgrade it with an SSD and run Windows 7 64 bit so I can max out the ram to 4 gb. Is this possible? I tried using the Windows compatiblity program on Microsoft's site but I keep getting a try again later message from Microsoft's site and it won't even start it. Any help would be appreciated!