Please help !!

  • Thread starter Thread starter AKT
  • Start date Start date
A

AKT

I have an IBM T41p running Window XP Pro. I have recently
rebuild my system using the tools provided by IBM. Before
rebuidling the system, I have backup my files my copying
to an external USB hard-disk, including some encrypted
folders/files.

After I rebuilt the system, I tried to copy the files
back to now like-new system. However, Windows refuse to
copy the file and denied access. The system before and
after rebuild are virtually the same.

This is not the first time I backup encrypted
folders/files before rebuilding a system, yet this is the
only time I have problem.

The encryption was done before the SP2 installation on
the old system, and the new system has SP2 installed.

Any insight and suggestion are welcome. Thanks
 
Before encrypting anything important, you should back up your
personal encryption certificate (with its associated private key)
and the recovery agent certificate to a floppy disk and store it in
a secure location. If you ever lose your original certificate
(because of a hard disk failure, for example), you can restore
the backup copy and regain access to your files. If you lose all
copies of your certificate (and no recovery agent certificates exist),
you won't be able to use your encrypted files. No back door exists,
nor is there any practical way to hack these files.
(If there were, it wouldn't be very good encryption.)

HOW TO: Remove File Encryption in Windows XP
http://support.microsoft.com/default.aspx?scid=kb;EN-US;308993

Without a backup of the original Encryption Certificate Key, encrypted files
are unrecoverable as they will stay encrypted forever. There is no recovery
method since the encryption algorithm is now completely different with a
reinstall of Windows XP.

See if the following articles help in any way:

HOW TO: Take Ownership of a File or Folder in Windows XP
http://support.microsoft.com/default.aspx?scid=kb;en-us;308421

Best Practices for the Encrypting File System
http://support.microsoft.com/default.aspx?scid=kb;en-us;223316

Encrypting File System in Windows XP
http://www.microsoft.com/technet/prodtechnol/winxppro/deploy/cryptfs.mspx

EFS Files Appear Corrupted When You Open Them
http://support.microsoft.com/default.aspx?scid=kb;en-us;329741

--
Carey Frisch
Microsoft MVP
Windows XP - Shell/User

Be Smart! Protect Your PC!
http://www.microsoft.com/athome/security/protect/default.aspx

------------------------------------------------------------------------

:

| I have an IBM T41p running Window XP Pro. I have recently
| rebuild my system using the tools provided by IBM. Before
| rebuidling the system, I have backup my files my copying
| to an external USB hard-disk, including some encrypted
| folders/files.
|
| After I rebuilt the system, I tried to copy the files
| back to now like-new system. However, Windows refuse to
| copy the file and denied access. The system before and
| after rebuild are virtually the same.
|
| This is not the first time I backup encrypted
| folders/files before rebuilding a system, yet this is the
| only time I have problem.
|
| The encryption was done before the SP2 installation on
| the old system, and the new system has SP2 installed.
|
| Any insight and suggestion are welcome. Thanks
 
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