Impossible to decrypt the EFS file

Dear all,

I encrypted contents of a folder, and its color turned green. I need to install a new fresh Windows version 7. Now, when

I try to remove the check mark on "Encrypt contents to secure data", I first get the message "you will need give the administrator permission to change these attributes ' then ' an error occurred the attribute apply to the file:...» Access is denied. "

If you encrypt a file or folder, and then reinstall the OS, you will never be able to access data encrypted unless you have the encryption certificate and key to the initial installation.

On your original installation you should export your encryption certificate and key (which is a file) and stored in a safe place and if you do not have your data is lost, there is no way to recover it, there is no backdoor to the recovery.  It's a pretty safe way to secure your data.  Perhaps a company that specializes in these issues can help, but it is doubtful.

Microsoft says:

If your encryption key is lost or damaged and you don't have a way to recover your data, the data is lost.

http://Windows.Microsoft.com/en-us/Windows/back-up-EFS-certificate#1TC=Windows-7

You must have a backup copy of your encryption key and associated certificates on a disc or other removable media:

http://Windows.Microsoft.com/en-us/Windows/recover-encrypted-files-folders#1TC=Windows-7

Tags: Windows

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