Following the most recent LRCC update I am doing my periodic LR optimization check . When reviewing the latest "Optimize performance" information in the online help I came across a comment I have not seen before.
From online help
Lightroom operates in 64-bit mode automatically if it is installed on a computer that is 64 bit capable and running a 64-bit OS. You can verify that it's running in 64-bit mode by doing the following:
Of course being the nerd that I am and having invested in a high end system I looked to see if my LR was running in 64-bit. To my surprise, there is no x64 in the title. What am I missing? Am I looking in the wrong place? Is LR actually running as a 32-bit system? If so, How do I fix this?
Of course the fix was not shown :-(
The designation 'x64' in title bar only applies to version 4 & 5 of Lightroom
Those versions could run either in 32 or 64 bit.
Lightroom 6/CC2015 is 64bit only so the extra designation in the title bar is not needed.
Someone needs to edit the optimization online help and add your exact answer. Please suggest this to the appropriate people.