Hi, So, my task is: transfer encryptedfile from system A to system B and open it. To implement it(according to vista help) I encrypted some file at the system A andcopied it to the flash drive (formatted with NTFS) then I exported my EFS certificate with private key to the same flash. Then I tried to import this certificate at the system B andopened encrypted file but "Access Deny" error was returned. Both system works with Vista Ultimate without domain, ACL for file allows open it for everyine, certificatethumbprint agree with file. Thank you in advance.

Hi Tovarish, I suggest you first take a look at the following article regarding EFS file recovery. You can also try the steps in this article. EFS File Recovery http://blogs.technet.com/asiasupp/archive/2007/04/26/efs-file-recovery.aspx Hope this helps!Sean Zhu - MSFT