One of the touted benefits to the latest Lightroom upgrade is the 64 bit support. So, why is Lightroom 2.0 running so damn slow? After some searching various message boards I found the reason. Lightroom 2.0 defaults to running in 32 bit mode. Just change it to run in 64 bit mode… right?

And here’s how:


Uncheck the “open in 32 bit mode” box and then start.

Seems like funny place to put it… right?

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One Response

  1. Cool, I’ll give this a try. Thanks.

    I wonder if it defaults to 32 Bit for everyone, or is the installer smart enough to look at the computers specs and make a decision during installation?

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