Hello, Those two snapshots are saved on my second data harddrive. Yesterday I had this message:"F is not accessible, the file or directory is corrupted and unreadable" I run a complete ckddsk /f /r F: and Widows did repair at least three error in those two snapshots. My question is, how those snapshots got corrupted in the first place as I haven't use them for the last week or so? Second question, can I still trust those snapshots now or should I format my second harddrive and start fresh? Thanks for your help.