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Please Help! Decrypt (EFS) Encrypted Files On Windows

By CodeBlue94 ·
So basically the situation is I backed up all of my files on an external hard drive with no software use. Just simple drag and drop to keep a copy.

After I was done backing up the stuff, I took the internal hard drive and plugged it into my new PC and did a format of that hard drive and installed Windows 7. So now I plug in my external hard drive so that I can transfer in my backed up files but then I noticed that everything is highlighted green......everything is encrypted and it will not allow me to transfer any of my files to my computer and the ******* won't even let me open up the files, it just keeps saying access denied and saying I don't have permission to do so. Am I really screwed over? Because I cannot afford to lose all of this files. And it's so annoying too because the files are taking up the space so I know that the file is there for me ready to be used but it just blocks me with the encryption! Is there anyway to remove the encryption or just get it to work? I really need those files

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Well, no. Can't be done, anyway.

by seanferd In reply to Please Help! Decrypt (EFS ...

<blockquote>I took the internal hard drive and plugged it into my new PC and did a format of that hard drive</blockquote>

Oops. No way to every recover the original account and its encryption key, now.

<blockquote>Because I cannot afford to lose all of this files.</blockquote>

You may have some luck forking over a lot of cash to Microsoft, or a data recovery house.

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Well....

by CodeBlue94 In reply to Well, no. Can't be done, ...

the format I have done was a quick one. So I know that I might have a chance to use some software to recover files but I still feel sketchy about it

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No harm in trying.

by AnsuGisalas In reply to Well....

Best go to the best solution first though, and be sure to use one that writes to a different drive than is being recovered
Ask a cyberforensics company, if anyone can, they're it.

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And you also installed on top of the format.

by seanferd In reply to Well....

Go ahead, give it a shot. If you want any hope of recovering anything, you certainly shouldn't be using the drive at all. But I think you pretty much need the intact installed OS and user account to access the encrypted files.

http://www.petri.co.il/how_does_efs_work.htm

Now, assuming you are able to at least pull up the key storage in
%User Profile%\Application Data\Microsoft\Crypto\RSA\User SID
%User Profile%\Application Data\Microsoft\Protect\User SID
or maybe even the whole user profile, you'll have to hack this back in to an installation of whatever flavour of Windows it came from, and hope it works.

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Sounds bad alright.

by AnsuGisalas In reply to And you also installed on ...

Best bet might be to incriminate oneself, like drop an anonymous hint about terrorist connections or something.

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Well....

by CodeBlue94 In reply to Well, no. Can't be done, ...

the format I have done was a quick one. So I know that I might have a chance to use some software to recover files but I still feel sketchy about it

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Well....

by CodeBlue94 In reply to Well, no. Can't be done, ...

the format I have done was a quick one. So I know that I might have a chance to use some software to recover files but I still feel sketchy about it

Collapse -

Well....

by CodeBlue94 In reply to Well, no. Can't be done, ...

the format I have done was a quick one. So I know that I might have a chance to use some software to recover files but I still feel sketchy about it

Collapse -

Well....

by CodeBlue94 In reply to Well, no. Can't be done, ...

the format I have done was a quick one. So I know that I might have a chance to use some software to recover files but I still feel sketchy about it

Collapse -

Well....

by CodeBlue94 In reply to Well, no. Can't be done, ...

the format I have done was a quick one. So I know that I might have a chance to use some software to recover files but I still feel sketchy about it

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