So far i cant install CSS5, Microsoft Visual Studio Ultimate 2010 and Java too....how am i supposed to deal with that?
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Shouldn't be a problem; X86 applications work fine...
That being said, all three are development tools, which rely on low-level access to HW in some cases, so install the 64-bit versions instead. Development tools are about the only software thats a bit picky when running on 64-bit.
Unless you have a 16bit installer you should not be having a problem with CSS5 and Visual Studio installs. Install the RIGHT Java engine.