I'm having a wierd problem trying to install RTM over RC.
I know all the warnings about this being not supported and the small tricks involved in actually making it work. Altough I definitely favour full "clean" reinstalls there are certainly cases where an upgrade is "good enough" and so far they all worked (and continue to work) just fine.
That being said those always involved 32bit versions of Windows 7. I now have to perform a similar trick on a 64bit OS and for some reason the installer complains about not being able to install 64 over 32 or 32 over 64. I have triple checked that the machine is indeed running x64 and that the media is x64...
System Manufacturer/Model Number Gateway GT5692 OS Windows 7 Ulti. x64 CPU AMD Phenom 8450 triple-core 2.10 ghz Memory 4GB Graphics Card ATI Radion HD 3200 Monitor(s) Displays Gateway FPD1775W Screen Resolution 1280x720
System Manufacturer/Model Number Toshiba Satellite S875D-S7239 laptop OS MS Windows 7 Ultimate SP1 64-bit CPU AMD A10-4600M Motherboard AMD Pumori (Socket FT1) Memory 6.00 GB Dual-Channel DDR3 @ 798MHz (11-11-12-28) Graphics Card AMD Radeon HD 7660G Sound Card High Definition Audio Device Monitor(s) Displays Generic PnP Monitor (1600x900@60Hz) Screen Resolution 1600x900@60Hz
Keyboard Standard PS/2 Keyboard Mouse HP Wireless Optical Mobile Mouse Model FHA-3410 Hard Drives SSD 119GB Corsair CSSD-V128GB2 ATA Device Internet Speed What the local pub, local coffee shop offers. Other Info Optical Drive:MATSHITA BD-CMB UJ160B ATA Device
Also have an Asus ha1002xp netbook with Win 7 Ultimate installed.