The Tridion console is locked to specific users. The user who installed Tridion will have to give permissions to all other users, which can be an issue if the installer is not on the project.

A way around this is the following.

Download `psexec.exe` from https://technet.microsoft.com/en-gb/sysinternals/bb897553.aspx?f=255&MSPPError=-2147217396

Open a command prompt in Admin view and navigate to the folder the psexec.exe is in

run the command `psexec -h cmd` (This will elevate the users token)

navigate to `C:\Windows\Microsoft.NET\Framework64\v4.0.30319` (Or whatever the .NET framework is)

Run the command `aspnet_regiis -pa "TridionRsaKeyContainer" "<domain>\<account>"` (Where domain and user is updated to udm000\user.name