Found on the ScanState Syntax document at microsoft docs site."Causes the ScanState command to copy the files in the encrypted format. The files will be inaccessible on the destination computer until the EFS certificates are migrated. EFS certificates will be automatically migrated; however, by default USMT fails if an encrypted file is found, unless you specify an /efs option. Therefore you should specify the /efs:copyraw option with the ScanState command to migrate the encrypted file. Then, when you run the LoadState command, the encrypted file and the EFS certificate will be automatically migrated.For example:ScanState /i:migdocs.xml /i:migapp.xml \server\share\migration\mystore /efs:copyrawImportantAll files must be encrypted if the parent folder is encrypted. If the encryption attribute on a file inside an encrypted folder has been removed, the file will be encrypted during the migration using the credentials of the account used to run the LoadState tool. For more information, see Migrate EFS Files and Certificates."
A folder must be on NTFS to be encrypted using EFS.
EFS stands for Encrypted File System and is used to encrypt folders and files in Windows XP or Vista.This encryption works ONLY when using the Windows NTFS file system!
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Unless you have a backup of your user profile folder before you deleted the EFS certificate, your files are gone.
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manish
Encrypting Files System (EFS)
Encrypted files can only be accessed by authorized computer users who have the decryption key. Encryption is a popular technique in Information Security.
Windows Bit Locker only encrypts individual drives or partitions. Encrypting File System (EFS) however does allow for individual files to be encrypted but for the most part there are many other encryption software tools that allows more diverse options.
http://en.wikipedia.org/wiki/Encrypting_File_System
EFS Encrypting File System