how do I reinstall lightroom on a new computer?
Could you please confirm which version of Lightroom do you want to install?
Refer this link for Lightroom 4/5/6 : Install Photoshop Lightroom
It is usually straightforward. See if this link helps:
Move LR to a New Computer
It's very easy.
Take a look here: http://www.lightroomqueen.com/how-move-lightroom-to-new-computer/
Retrieving data ...