Vista+Error+when+opening+EFS+file+in+XP+Server+2003


 * Vista Error when opening EFS file in XP/Server 2003 after it has been opened in Vista**

If you use the Encrypting File System (EFS) to encrypt a file on the disk in Vista, or if you open and edit an EFS encrypted file on a Vista computer and then try to open that same file on an XP or Server 2003 computer, you may get an "**Access Is Denied"** error message. This happens because Vista uses a new version of EFS and unfortunately, at the moment there is no workaround.

Read more in KB article KB 939391 []