When you install Lightroom, you will have to sign into Adobe Creative Cloud. I think the purchase should be obvious from there, and you should get a serial number. It’s messy if you have a CC licence and need to install Lr on an extra computer. If you have a CC licence and a perpetual serial number. Now enter your serial number and you should be good to go. The next screen is this, so click License This Software: 7. Restart Lightroom and you should be asked to Sign In. Choose the Full or Upgrade version as appropriate. Instead, click Buy which brings up this much more obvious screen: 3. Don’t click the link to Photoshop Lightroom 6 as that just takes you back to Adobe’s standard Lightroom page where you get pushed towards CC. If you don’t see Choose Your Region, and an incorrect local office is shown, choose Change rosclear 2. Adobe Lightroom 6 Serial Number Generator.For other countries, follow the USA link and select Choose Your Region. Go to the Products page for your country or region. Instead, you need to go to Adobe’s Products listing page. Make sure you click the Buy button If you want to buy Lightroom with a normal, perpetual licence, don’t try going via Lightroom’s main page – it will only lead you off into the cloud.