Lightroom 6 registration problem
Hello everyone!
Basically, I would like to register/insert the Serial number number for Lightroom 6.
I was advised to install Lightroom CC (at the moment, I have Photoshop Lightroom version 1.2 installed) and then convert/register it as a Lightroom 6, following these instructions:
How to convert a Lightroom CC trial version to licensed Lightroom 6 copy
The problem occurs at Step 4: instead of offering me the option to insert the Serial number, I get this message:

The Adobe ID was created at the beginning of the Lightroom installer download (without that, download of the installer wouldn't be allowed at all). I also tried to create a new Adobe ID independently afterwards and Sign in the Lightroom with it. It doesn't make any difference - I get the same message that there is no subscription found...
What am I doing wrong? How should I register Lightroom 6?
Thank you!
