Hello, everyone! I really need some help this time. Last week I've reinstalled my Windows 7 because my notebook was slow and I wanted to went back to the factory setting. I've picked my Seagate external HD (2TB) and moved everything I had into a folder called "[Acer]". Well, I had some problems with external hard drives this year, I've lost many information from an external HD, and I found out that it was because I've connected this HD in a Macintosh. I really DON'T KNOW WHY, but every folder that I had opened in my Macintosh went CORRUPTED in Windows 7, with no chances to repair the files. Since then, I haven't plugged my external hard drives into my Macintosh. I don't know if it's a Windows 7 problem or a problem with my Seagate HD, but the quantity of issues that I had with this external HD since then was crazy. Every time I disconnected this HD and then connected again, Windows asked me to repair and scan the files. And the amount of time to scan everything was, like, one and a half hour... so it was bugging me a lot. But the real problem is: yesterday I've plugged my external HD and my backup folder (called "[Acer]" simply disappeared from the drive. I've tried to run "chkdsk E: /F", with no success. Now I'm running a "chkdsk E: /R", and it will take me a lot of time, and I'm really not positive to recover my backup folder. All the old folders are there, everything is fine, but this folder disappeared, only this folder (and everything that were inside of it) disappeared. I've also tried Recuva (Recuva - Download) to recover my folder, but it haven't found it. Does anyone have ANY CLUE on this? What I have to do? I'm desperate! I'm freaking out. I had some very important files in this folder.