HI Again
You don’t say if you still have the biab folder present on your drive.
Or if you lost every thing by re formatting the hard drive.
If you just reinstalled or repaired windows without reformatting the hard drive then the c: bb folder should still be there.
If it is but its just a case that it no longer runs , it may well help to download and install the last update for version 10
Band-in-a-Box® Version 10.0c Update (505 KB)
This patch will update Band-in-a-Box® version 10.0 - 10.0b to version 10.0c. Please note that you must have versions 10.0 to use the update. If you are using any other version, the update will not succeed.
You will find this at
https://www.pgmusic.com/support_windowsupdates.htmscroll towards the bottom of the page to find this
You may also need to run the installer from the C: bb folder to install a couple of bits in your new copy of windows ( fonts etc )
Hope this is some help.
Mike