I recently discovered the cipher command on Windows 10 command line and have been trying to use it to encrypt a directory or an absolute path. However, I keep receiving the error “Request not supported” when trying to execute the command “cipher /e [directory name]” or “cipher /e [absolute path].”

I am running Microsoft Windows 10 Home, have executed the command as an administrator in both ‘cmd’ and ‘powershell,’ and the disk’s file system is NTFS. I have also given all users access to the ‘Security’ attribute on the targeted folder (which is currently empty for testing purposes).

Can someone provide a suggestion or solution for why I am encountering this error?

Am I missing something important?

Askify Moderator Edited question May 5, 2023