Windows XP Pro. Encrypted file name is colored green. I get an error decrypting a file: An Error occured applying attributes to the file: path:\filename access is denied. I am the administrator of this computer from installation of Windows XP. Under Details: Users that can transparently access this file is my user name. Running MMC and Looking under Console Root/ Certificates (local computer)/Trusted Root Certification Authorities/Certificates is my admin. Properties shows Enable all purposes for this certificate, "Encrypting File System" is checked.