I have 2 laptops running Windows 7 and have Lightroom 5.7 . I understand that Lightroom cannot support concurrent users due to SQL used with the LR catalog. I would like to use my version of Lightroom on each of the laptops understanding that it can be only actively used on one machine at a time. My LR catalog and photo libraries are on separate USB hard drives. How can I set up Lightroom on these 2 laptops to access the portable hard drives knowing that I can run only one active version of the software?
Put the catalog and all the related files on the external hard drive along with the images, and plug it into the computer where you want to use it.