Norton not detecting problem

Hello, my computer is having a problem, and I figure what it is. I went to system restore, and the window came up blank, I am not allowed to do anything to restore my system to an earlier date, blocked.  Norton is not detecting any issues with my computer, but I can tell there is. 

Please help with this, I am afraid to use it as I my be compromised, or make it worse.

Thank you,