Let me start by saying that I've been using TMG for over 12 years. So I know how to back it up. And everything has been going fine until three days ago, when I went to back up and within about 3 seconds of hitting the button an error windows pops up that says, "Input file read failure - This error occurs when a file read operation is performed on a ZIP file that is locked or restricted by another process."
I then have to click the 'OK' button of the error message, at which point I get a notification that my backup is complete. However, it's not complete because I know it takes more than 3 seconds to back up my project (containing over 27,000 people). I haven't added anything new to the computer recently, so I'm clueless as to what is causing this. I'm really concerned, though, because I have added quite a bit of data since my last backup (yes, I'm bad and don't back up every single time I'm in the program).
I'm hoping someone can help! Thanks very much!