CyberLynx, you're on the right path, many thanks, that's where I started and it's been working since.
boblarson,
my problem is and was, I have to shift key to open my master copy for changes but it happened on few occasion that I was not trying to run the master but another database. As I quickly press on the shift key and click enter another database, the entire files on the folder gets highlighted and start opening. It goes so quickly before I could react. The master does its routine and delete the original copy but there's none to replaced it. The back up copies did the same, every copy is now deleted. I already updated the version of the back end and ready to create a new mde file when interrupted to open another database.
I saw someone came up with a code to prevent this from happening, I made a copy but can't locate it. Do anything about it?
Thank you all