[Metalab] Windows Encrypting File System (EFS) Problem -- Any advice?

[Chris Hager]

Hey everyone,

A friend of mine backed up some data from a Windows box to an external hard
drive, wiped the Windows drive and installed Linux with full disk
encryption. Afterwards he found that he couldn't access a lot of the backed
up files because they were encrypted with Windows Encrypting File System,
which encrypts files with some Windows-installation specific SID keys
(afaik).

Any ideas what we could try to access the data?

In this metafilter comment thread [1] somebody suggested to try to extract
the SID from non-encrypted backed up files. We're going to try that. Any
other ideas?

Thanks,
- Chris

[1]
http://ask.metafilter.com/33328/I-reinstalled-Windows-and-now-I-cant-access-my-encrypted-files-on-my-NTFS-external-drive
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