You have All users, it is a system folder, uncheck: "Hide protected operating system files (Recommended)" in folder options or just type the folder's path in the address bar directly: "C:\Users\All Users\Microsoft\Crypto\RSA\MachineKeys"

Hi Doug, This is a known issue and here is how to workaround it: 1. Open the directory %SystemDrive%\Users\All Users\Microsoft\Crypto\RSA\MachineKeys (note that the if you are in XP or W2K3 the directory changes to \documents and settings\all users\...) 2. Grant explicit access to BUILTIN\Administrators...