Hi, thanks for the reply.

I tried your suggestion and it didn't work unfortnately.
In previous years I've always installed the program on the C drive and the Realtracks and Realdrums on the external drive.

For some reason I'm getting the same message no matter where I try or how deep into a Windows folder or Extenal Hard Drive folder I specify.

I really don't know how to resolve this and although this is a newish PC I installed BIAB 2025 UltraPAK Plus with no issues literally about 2 months ago.

Any trace of that has gone now - I didn't even uninstall it.

Once again thanks for the suggestion!