I have Lightroom removed from my old computer and installed on the new computer. Here the version is reduced. What do I have to do so that I can enter the serial number?Siebelg
You need to install the same version of Lightroom on your new machine, in order to activate it using the same serial number.
When you install the software, it will give you the screen where you need to enter the activation key.
Refer: Install Photoshop Lightroom
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