Your question is a little confusing. There is only one version of Lightroom Classic. There is another version, Lightroom, which is for the cloud. Some users call it Lightroom CC. There is not a mobile version and a desktop version of Lightroom Classic. If you installed Lightroom (the cloud version) on your laptop then all that is necessary is to go to the Creative Cloud Manager and look for Lightroom Classic and you should have the option to install it.