how can I change from 6 pro to 7 free without losing data. Update wont won't work. Can't download file

 If I try version 6 pro to update to version 7 free it gives an error. Can’t
download this file.
I can download version 7 from the website en then install it. And it works. Then I want my data not on the C bud on the D partition. The say: make a map on the D. Change the options in the destination map. Then copy the old destination-map into the new map. Bud that doesn’t work at all.
 

Download and install version 7 from the Release History

When you start version 7 for the first time, it should prompt you to import the version 6 database. Do that.

Go to Menu > Tools > Settings > General > Storage and see the location of the database. If it is on D: then nothing further needs to be done.

If it is C: then close eM Client and move the directory from C: to D:

Restart eM Client and cancel the account setup screen.

Go to Menu > Tools > Settings > General > Storage and change the database location to where you saved it on D:

Restart eM Client.