Hello all! Windows 7 installations are made for both 32-bit and 64-bit systems. I would like to ask: is it really noticed that 64-bit enhances performance? If 32-bit applications are to be installed on 64-bit, will there be any problems? I know that drivers are specific and that I have to download the compatible drivers for each system, but assume installing Office 2007 or Nero 8, would it be possible to run them under the environment of 64-bit OS? Thanks for help.