EFS decryption without certificate/key

Communities Science, Engineering, & Security
1

I have a USB HDD with some EFS encrypted files in windows 7 … I have lost the certificate/key is there a way to recover the data :frowning: ?

2

Doubtful, not unless you have a backup of the key.

3

Found this but only skimmed it.

https://www.elcomsoft.com/cases/tips_on_recovering_EFS-encrypted_data_when_it_gets_lost.pdf

4

No backup of the key ...

5

I have found 2 master keys but still cant open the files.

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