RPC server error

After turning my computer back on today (only shut down overnight) the program is showing that my system is completely unsecured and each time I click on the update page I get an error message that says “RPC server is unavailable”. I have no idea how to fix this, but my computer is a complete mess now that it appears I have no anti-virus protection. Can someone please help??

Welcome to the forum jbalden,
See if the following will help with your problem:
http://www.ctimls.com/Support/KB/Error%20Fixes/Fix_Error_RPC_Server_Unavailable.htm