RockFox

I was not aware of Windows writing System Volume Information whenever a USB drive is plugged in. What if the USB is never unplugged and the computer never shutdown? BTW, my statement comes from 52 years experience with IBM VSE and VM operating systems where nothing is ever written to a data disk unless it is intentional.

I strongly disagree in the case of an external hard drive that is read-only. The scan results would be the same today as yesterday and 5 years from now. My first scan of a 4TB drive took 11 hours using the free version. I attempted to recover 1 file (to another drive) and got a message "Device not ready". My only option was to start the 11 hour scan again. Same thing. I decided to buy the Pro version and then I had to do the 11 hour scan again. I started a recovery to another 4TB drive and minimized Recuva. There was a message about a duplicate file name and I could not maximize Recuva in order to respond. I had to use Task Manager to kill it. So now I have to start the 11 hour scan again. If I could have saved the results of the first scan and then reloaded them look how much time it would have saved. All of the scan information is stored somewhere in Recuva and there is absolutely no good reason why it could not be saved somewhere and then reloaded later. It seems like a pretty simple task to me. As to your comment "just because something is recoverable on Monday Morning doesn't mean the same file will be recoverable on Monday night" that is ridiculous on a read-only drive.