If you have a valid subscription you should be able to download the product from there. If you purchased a boxed retail version from a third party (although, I'm not even sure these are still available), then obviously you may need to find the subscription code from the the box or packaging.
Answers
How did you purchase FS in the first place? Usually, everything is done through your portal at:
If you have a valid subscription you should be able to download the product from there. If you purchased a boxed retail version from a third party (although, I'm not even sure these are still available), then obviously you may need to find the subscription code from the the box or packaging.