Here's a problem, perhaps someone here in the forum might have knowledge of or links to relevant information. While trying to encrypt or decrypt files and folders an Access Denied error is produced. However, if files and folders, previously encrypted, are copied to a FAT partition the files and folders are decrypted. I have tried resetting effective permissions for Users, Groups and Security Principals, from the Administrator account and the original user Admin account without any success. The problem occurs while trying to encrypt or decrypt from the Windows Explorer as well as Cipher.exe.