Just attempted to do this and have already stumbled across a problem: I don't know what I'm doing and all the guides I found are either for having a database on a network using IP address(I don't think this is what I'm doing, aren't I essentially storing it on another hard drive?) or they were made to tailor XP
This is what I think I need to do:
Install the same version of PT3/postgreSQL on both os
Somehow make both postgreSQL share the same database(or is postgreSQL the database and I need PT3 to connect to the same postgreSQL?)
Go to PT3 and somehow get it to "see" the new database in the database management screen and set it as the default