| · | Windows NT 4.0, Windows 2000, Windows XP, Windows Server 2003 or Windows Vista |
| · | Administrator privileges (for direct disk access) |
Known problems and limitations:
| · | The program can decrypt protected files only if encryption keys (at least, some of them) are still exist in the system and have not been tampered. If the system disk (where operating system was installed) has been reformatted, the machine was not a domain member, the user did not backup the user profile (or encryption keys), and recovery agent has not been set up, then the files are almost certainly lost for good, and AEFSDR will not be able to recover (decrypt them) them. |
| · | Only Basic (but not Dynamic) NTFS partitions are supported. |
| · | For files encrypted on Windows 2000, if Account Database Key (SYSKEY) is stored on floppy disk, or if Password Startup option has been set, you should know/have one of the following in order to be able to decrypt the files: |
| · | startup password or startup floppy disk |
| · | the password of user who encrypted the files |
| · | the password of Recovery Agent (if one is available) |
| · | If files were encrypted under Windows XP/2003/Vista, the password of user who encrypted the files (or Recovery Agent) is needed for decryption. |
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