I have done much research, both here and on Google, and everything I read about the Acronis Secure Zone insists that it is a hidden partition; that Windows or any other operating system cannot see it, read it, or write to it; that it can only be accessed by Acronis True Image; that it is safe from defraggers because defraggers won't touch it. Well, I am here to challenge all of the above assertions. I have Windows Vista and have installed ATI 11 Home on my system. As a former spoiled fan of GoBack on my previous Windows 98 system, I do wish to applaud and credit ATI for saving my hide on more than one occasion with my new custom-built system. I am most definitely an ATI convert! I have run Windows Vista Defragger on several occasions to defrag my primary C:\ drive and my logical E:\ drive; but only when WVD tells me, upon a manual scan, that peformance can be improved with defragmentation. Upon completion, WVD assures me that performance is good. Recently, however, after running WVD on the above-mentioned drives as usual, I received the warning message that performance can be improved. I only have two other logical drives: one has not been accessed since I formatted it; the other had image files that have since been deleted and, hence, no longer contains a single file. Still, I ran WVD once again, including these drives in the defrag process. [NOTE: I do have two additional logical drives for Ubuntu and its separate \home partition; but, since these contain ext2 file systems, WVD does not offer them as drives for defragging. - As you will learn, this is a moot point, but I thought I should offer full disclosure, anyway.] So, after running WVD again, I received the same warning message that performance can be improved. I decided to run WVD a third time; this time, throwing caution to the wind, I would include the Acronis Secure Zone partition, which IS offered by WVD in the drive selection dialog box. [What happened to "Windows cannot see or access ASZ" and "Defraggers won't touch ASZ"?] Anyway, after running WVD on all drives, including ASZ, I received the comforting message that performance is good. So, it appears that Windows can access the ASZ and defraggers can touch ASZ. My only questions now are: (1) Do I need to worry that my images in ASZ are now corrupt? (2) Can I safely create new backups in ASZ? (Differentials/Incrementals, assuming that the current full images are valid; or full images)? (3) What does all this mean for ASZ? I suppose I will create a full backup image and burn it to DVDs so as not to rely on the current images in ASZ. But, I hope that ASZ is not damaged in a way that will cause problems for future backup images saved there. The DVD backups are certainly an alternative; but a time-consuming alternative. Any ideas or feedback from the experts here would be greatly appreciated.