cs6 and lightroom 4 reinstallation

https://community.adobe.com/t5/Get-Started/Can-I-download-my-older-apps/td-p/10689585

Good morning, Spoc51.
Please tell me a little more because there is not enough information.

• Do you have CS6 in a package (including download version)? Or are you trying to install with CC subscribers?
• Do you have the serial number (if packaged or downloaded)?
• What is the OS(version) of the PC to reinstallation?