I image C drive on every Wednesday & Saturday. The only problem with that arrangement is that, when I somehow need to restore an older image, the data files on that image don't include any of the changes made subsequent to the date of that image file. Ergo, I decided to do a separate back-up of just my data files at the end of each day's work. So I began looking for a File Synchronization app. I downloaded several file synchronization apps -- most of them were paid & a few were free. I gave them each a trial while my computer was in Shadow Defender mode (somewhat similar to virtual). I hate reading instructions so I lean toward apps where the GUI holds my hand and walks me through every step of the process. Of all the ones I tried, the easiest, most efficient one was SyncFolders. As it happened, SyncFolders is a free app whereas I am a strong believer that "the worker is worthy of his pay." So I donated about the same amount as the "reasonably priced" paid versions were asking. I used PayPal because the developers of SynFolders are in the Netherlands & the donations click spot wants Euros currency. When you float the cursor over each icon on the app's GUI, it tells you what it does when you click it. There is an icon to "Make a Rule (a "rule" tells SyncFolders what files you want synchronized and how you want it done). There is another icon for "Edit a Rule" and another for "Copy a Rule" and another for "Delete a Rule" etc etc -- splendidly simple! Once you click "Make a Rule" the app walks you through each step of the process. This is mainly done by offering you click buttons for selecting among various options. When you click one of the options, the app gives you a pop-up that tells you what it does. The pop-up also explains conditions where it should be applied and conditions where it should NOT be applied. In short, SyncFolders is "an app designed by geniuses for execution by lazy novices." If you need such an app & want to give SyncFolders a try, get it HERE. It has both an install version and a portable version (I use the portable). If you want screenshots of the app, that website has lots of them, right on page 1. It's very easy to find the Download for SyncFolder's install version. However, the location of the PORTABLE version is buried in a paragraph of verbiage. You can dig through the verbiage if you want BUT -- I'll be a nice guy and give you the portable's URL right now... Code: http://www.syncfolders.elementfx.com/setupfile/SyncFoldersPortable.zip If you decide to give SyncFolders a trial, please let me know what you think of it. OR -- if you know a file synchronizer that is even easier than SyncFolders, please let me know that, too.