decrypt files

G

Guest

i cannot seem to decrypt my files, they have a green text colour, i did not
choose for them to be encry[ted and when i try to decrypt them an error
occurs and also they do not open. thank you very much
 
M

Malke

Abid said:
i cannot seem to decrypt my files, they have a green text colour, i
did not choose for them to be encry[ted and when i try to decrypt them
an error occurs and also they do not open. thank you very much

Encryption doesn't happen all by itself. If you didn't encrypt the
files, someone else did and you'd better go ask them about it. Here are
links explaining about encryption.

http://tinyurl.com/6l6xx - MS information about EFS (Encryption)
http://www.elcomsoft.com/aefsdr.html - Encrypted files retrieval
application

http://www3.telus.net/dandemar/encrypt.htm - encryption info
http://www.beginningtoseethelight.org/efsrecovery/ - more encryption
info
http://www3.telus.net/dandemar/private.htm - making stuff private

Malke
 
S

Steven L Umbach

Someone enabled the encryption attribute on the folder that contains those
files. By default in Windows XP Pro only the owner of those files who put
the files in the folder will be able to decrypt them assuming the user's EFS
certificate/private key is on the computer. You can use the user certmgr.msc
to view your "user" certificates by looking in the personal\certificates
folder where you should see one that shows encrypted file system as the
intended purpose and says that "you have a private key that corresponds to
this certificate" on the general page of the certificate if you have ever
encrypted any files. You might want to logon as any other user account that
are on the computer too see if they work and you can use the support tool
efsinfo to show the name of the user than can decrypt the files if they have
their certificate/private key. Support tools are on the install disk in the
support/tools folder where you have to run the setup program there to
install them.

On a workstation computer if the user for those EFS files has ever had his
password "reset" then he will be denied access to the EFS files unless he
changes his password back to what to was before it was reset. Password
changes are done by the user using control-alt-delete or when prompted to by
the operating system. Passwords are reset by an administrator and a warning
message will appear telling them that doing such can prevent the user from
accessing their files. Reinstalling the operating system that involves
formatting the system drive is another common reason for users not being
able to access their EFS files. --- Steve

http://support.microsoft.com/default.aspx?scid=kb;en-us;243026&sd=tech ---
efsinfo use.
http://support.microsoft.com/kb/223316/ --- EFS best practices.
 
G

Guest

On Windows XP, you can open the properties on the file to see whose
encryption certificate was used to encrypt the file. Right-click the file
and select Properties > Advanced button > Details button. When the
Encryption Details dialog opens, the top listview displays the certificate
that encrypted the file.

Thanks.
Pat
--
This posting is provided "AS IS" with no warranties, and confers no rights.


Malke said:
Abid said:
i cannot seem to decrypt my files, they have a green text colour, i
did not choose for them to be encry[ted and when i try to decrypt them
an error occurs and also they do not open. thank you very much

Encryption doesn't happen all by itself. If you didn't encrypt the
files, someone else did and you'd better go ask them about it. Here are
links explaining about encryption.

http://tinyurl.com/6l6xx - MS information about EFS (Encryption)
http://www.elcomsoft.com/aefsdr.html - Encrypted files retrieval
application

http://www3.telus.net/dandemar/encrypt.htm - encryption info
http://www.beginningtoseethelight.org/efsrecovery/ - more encryption
info
http://www3.telus.net/dandemar/private.htm - making stuff private

Malke
--
Elephant Boy Computers
www.elephantboycomputers.com
"Don't Panic!"
MS-MVP Windows - Shell/User
 

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