Re-Install of 2019

I want to do a complete re-install of trainz 2019, how ever i have a lot of downloaded material and routes. Is there anyway i can reinstall without losing any of this, can i move a folder or something similar.
If so which folder is it and where is it located.

thanks for any help that comes,

Mark.

Open trainz launcher and click settings. Look in the install tab to find location of your folder. Trainz will install a new folder on your C drive so you will need to change the path to your old folders location and do a DBR once installed.