I was trying to get the 64 bit version of IE10 to run by clicking on iexplore.exe in c:/program files/Internet Explorer but that runs the 32 bit version just the same as clicking on iexplore.exe in c:/program files(x86)/Internet Explorer. That had me puzzled. Couldn't figure out why clicking on a program in the 64bit directory would run a 32 bit program. I'm still puzzled about that. But, on the Microsoft answers forum they said that the Metro version is 64 bit but didn't explain why clicking on a program in the 64 bit program directory runs a 32 bit program. But I didn't specifically ask that question. I only asked how to FORCE the 64 bit version of IE10 to run. And the answer to that is simply to run the Metro version. Which is very disappointing because the Metro version is soooo uuuuugggglllyyy. And nowhere near as useful or easy to use as the regular IE10.