Hi, Shane. I've had Registry Backup v1.6.0 set up via Windows Task Scheduler to run twice a day, 12 hours apart, upon 10 minutes of system idle time for a couple of months. I'm using argument "-auto". I originally had it set up to run under my user account (which is administrator) but my experience has been that Task Scheduler does not pick up missed tasks after a restart for non-System user accounts. So, I changed it to run under user account "SYSTEM" and it's never missed being run when it should be (even after a restart after a missed task due to the idle condition not being met). I always have DriveGLEAM running which is wonderful for letting me easily see my CPU and physical disk usage at all times. It normally shows 0% CPU usage unless something I'm aware of is running. Twice now, I've noticed it sitting at 25% usage without anything obvious going on and when I check Task Manager I see TweakingRegistryBackup.exe running as a process using 25% CPU. When I check the backup files that it should be generating at that time, they are there and contain all the same folders and files as any of the other previous registry backups and the size of the entire backup is virtually the same as the previous one. I mean, it seems to have done its job but, for some reason, isn't ending. No other processes are showing any CPU usage whenever I look (other than Task Manager). I've let it go like this for over an hour each time and it doesn't end on its own so I kill it. I'm sure you are the one who may have an idea as to what may be going on. Thanks!
Addendum: Next time I ran the program directly after killing the process, it came up with a notice which I closed before writing it down specifically but it was something to the effect, "The last process did not end properly, would you like to revert to the fallback method?". I just answered "No" and did a backup (via VSS) which completed fine.