
Optional: I would like feedback as to how often IE uses 64-bit tabs. Please note that process explorer is for advanced users, and I do not recommend using it beyond these directions. This way, you can differentiate between the tabs and windows. These are typically known as child processes processes started by another process. That may be confusing: notice that some "iexplore.exe"s seems to be listed underneath an "iexplore.exe". I would also like to clear something else up Now you can keep a look out for whether IE is 32 or 64. You can also change this option at view>columns. Right-click the column headers at the top and select "select columns".

Once you save it, you may want to make this modification to it: To our disappointment, task manager sometimes will not tell us if a process is 32-bit. If nessecary, you can instead use Sysinternals' These options can be found under tools>internet options>advanced>security> on IE 11, you must enable a separate option labeled "enable 64-bit processes for enhanced protected mode". If you want 64-bit tabs on IE 10 you can simply enabled enhanced protected mode. Note that I have only used a beta version of IE 11, not the final release of it, so I will tell you what I know: Regardless of which version of the program you run directly.

Starting with IE 10, on 64-bit system, both run simultaneously: a 64-bit host process and isolated 32-bit tabs with better security, In IE 11, 32-bit program files are in the x86 directory, and 64-bit program files are in the normal program files directory.
