Hi, As you correctly mentionned, a machine equipped with a newest service pack uses a better encrypting mechanism when mangling data.
This situation is not a disaster as long as you still have the original files (encrypted with xpsp1). Just go back to the machine where you encrypted them and decrypt them on this machine. As a matter of fact, I guess you had to import your private key on the XP box when you did this 'failure'. Marc www.ochsenmeier.de (I documented this 'backward' compatibility feature on a EFS article) > Hi I accidentally decrypted some important files that were encrypted using > EFS on a WinXP SP1 machine using another WinXP installation without any > service packs. Now all data seems to be corrupted and it is after this I > discovered that WinXP without SP1 uses different encryption for EFS. I > think > my second WinXP installation without SP1 has decrypted all my data using > something other than AES. > > > > My question is: is there any way to some how reverse this process and > recover this data? Please let me know if there is way to recover the data. > > > > Thanx > > AN > > > --------------------------------------------------------------------------- > --------------------------------------------------------------------------- > > --------------------------------------------------------------------------- ---------------------------------------------------------------------------
