When I enter my serial number for Ligthroom 6, the software cannot be found on my computer

[Abdab293]

I downloaded an upgrade from Lightroom 3 to 6 last night. Have extracted files but when I enter the serial number, am told the software can't be found on my computer.

[Sheena Kaul]

Hi,

This link might help: Error: "This serial number is not for a qualifying product" | CS6, CS5.5, CS5

Regards,

Sheena