How do i copy an encrypted file from another harddisk omeryasin

How are you going to access the file? How is it encrypted?

Actually i Buy new hard disk and now i am trying to copy the data from my old drive to new one but there are files which are encrypted using windows XP now i am not been able to copy those encrypted files to my new hard disk because i have no access to this omeryasin

Easiest solution would be to put the old HDD back in and launch XP. Use your administrative authority to unencrypt the files and put the HDD back in as a slave so that you can copy these files. If you don't have administrative authority to unencrypt these files this won't work...and maybe it shouldn't.

Dont there any other method as i have deleted the previous windows files omeryasin

Encrypting File System (EFS) provides the core file encryption technology used to store encrypted files on NTFS file system volumes. Once you encrypt a file or folder, you work with the encrypted file or folder just as you do with any other files and folders. Encryption is transparent to the user that encrypted the file. This means that you do not have to manually decrypt the encrypted file before you can use it. You can open and change the file as you normally do. Using EFS is similar to using permissions on files and folders. Both methods can be used to restrict access to data. However, an intruder who gains unauthorized physical access to your encrypted files or folders will be prevented from reading them. If the intruder tries to open or copy your encrypted file or folder he receives an access denied message. Permissions on files and folders do not protect against unauthorized physical attacks. You encrypt or decrypt a folder or file by setting the encryption property for folders and files just as you set any other attribute such as read-only, compressed, or hidden. If you encrypt a folder, all files and subfolders created in the encrypted folder are automatically encrypted. It is recommended that you encrypt at the folder level. Note: Does not work with FAT partitions. All encrypted files must be copied to NTFS partition. Must work on present Windows system. Does not work on files invisible due to user's access rights. http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/encrypt_overview.mspx