I am having trouble installing photoshop Lightroom. The program is installed and has some sections blocked off. I have the S/N #... I need it to be confirmed and activated so i can receive an email to activate the system to my computer. I am not sure how to go about doing so.
If you have a serial number, you simply need to enter it into the proper fields.
Since you don't say what version of Lightroom, and what sections are "blocked off", let me guess that you have Lightroom CC, and you need to enter the serial number to turn it into Lightroom 6. Here are the instructions: Adobe Photoshop Lightroom Help | Serialize Lightroom CC trial to activate as Lightroom 6
And if that's not the right assumption, then please give us the details.