Downloading Sage50 2020 onto desktop

SOLVED

Hi - I have the latest version of Sage50 Desktop on my computer.

I recently acquire a new client that is a non-profit society which has their own Sage50 2020 version. They only have basic requirements - no payroll or govt remittances.

It is on a CD and I don't have CD drive on my desktop so I have copied files onto an external drive.

If I try to download this version I am told that I must remove the Sage50 current version that is on my computer.

Obviously I do not want to do this - is there another way I can do this?

Thanks!