Your data is kept in a separate data file ending in .tax2019 and will not be affected. So it will be safe.
Turbo Tax asks for the License Code each time you start
https://ttlc.intuit.com/community/tax-topics/help/turbotax-2019-requests-license-activation-at-every-launch/00/960924
I got a reply and it was very helpful, I was pleased how smoothly everything went. thanks b