Quicken leaves hundreds of QFNxxx.TMP files

Thanks for pointing that out. I found them too.

This is the same Quicken (automatic) backup directory that has existed in Quicken since at least Q2000. And nothing any user could do, would have changed that.

I'll wager that all Quicken automatic backups still go to the BACKUP folder within the Quicken data folder of the file being automatically backed up.

I run Q2008, Q2009 and Q2010 (and a few others) ... nowhere do I see such a directory. With one exception: I have one .QDF file in C:\Backup, from October 2009 ... definiitely not an automatic backup ... and almost certainly from some test I ran. I have run Q2002, Q2005, Q2009 and Q2010 on that machine hundreds of times since October 2009 ... none of them have automatically backed up to any folder name other than BACKUP.

Q2010 has changed the automatic backup capabilities: you can now specify that Quicken automatically backup everytime you use Quicken (where before, it was more-or-less every 7 days you used Quicken - with no user option to change that). While I think that the new method of specifying automatic frequencies is a step down ... I do not believe it is producing the results you claim. All the automatic backups I see are still in the same folder they always were: the BACKUP folder in the Quicken data folder.

I've had lots of QFNxxxx.TMP files left by various Quicken releases for many, many years.

The best solution is to periodically run Disk Cleanup. This deletes lots of junk including old temporary files left by all application programs.

Jerry