The Microsoft Windows Operating system assigns drive letters dynamically. By default, each drive is given a letter in the order that it was attached to the computer. Unfortunately this means that drives often change letters if they are unplugged or the computer is restarted.

For photographers using Adobe Photoshop Lightroom and external hard drives the Windows dynamic drive letter assignment system can be a major hassle. This video tutorial demonstrates a simple way to outsmart this system and force drive letter consistency.

For more help with image storage and Adobe Photoshop Lightroom Catalog creation see:
thelightroomlab.com/2010/06/getting-started-right-adobe-photoshop-lightroom-3-setup-and-catalog-creation/