unable to open files in windows XP

I reinstall windows on one of my friends computer. After reinstall I am not able to open some of the files located on drive D: . Some of the files are with green colour, and when I check the properties of the file, they are marked as encrypted.
I tried to boot with MiniPE and to open or move the files from there, but unfortunately unsuccessful.
Any idea how to fix this problem and to manage to open files? He has some very important files which is not possible now to be opened.
dedriAsked:
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JohnBusiness Consultant (Owner)Commented:
Try restarting as XP administtator and altering (removing) security properties and permissions. Make sure administrator has a password before trying to log in as administrator.

.... Thinkpads_User
awaggonerCommented:
http://technet.microsoft.com/en-us/library/cc512680.aspx

If you dont have a copy of the encryption key, then you are pretty much out of luck.

You might try to send the file to a data recovery service, but that will cost money and there is no way to guarantee they will be able to break e encryption.

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awaggonerCommented:
http://www.pcreview.co.uk/forums/win-xp-pro-efs-decryption-after-os-reinstalled-help-please-t2483126.html
http://superuser.com/questions/226198/how-decrypt-a-file-that-encypted-in-other-windows-xp-os

If the computer was a member of an active directory domain, you MIT be able to recover it, but since you said the reinstall was for a friend's computer I doubt he had an AD environment at home.
n2fcCommented:
After the fact, hindsight, whatever...

But for FUTURE reference:
http://support.microsoft.com/kb/308993
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