I'm a little confused - some would say, 'so what's new?' :-)
I've just downloaded a Gedcom file and imported it into BK (into a new folder so that it does not get included in my database).
Anyhow, the data I imported has no relevance to my family history, so I wanted to delete the folder to which the data was imported (to the recycle bin).
When I did this, (after I had re-opened my original database in BK), I got the message 'Can not delete reportsw.bk6: it is being used by another person or program.'
If I close BK and then delete the imported file, presumably the reports file connected to my database will be 'safe.'
I would be grateful if someone would confirm this for me.