I bought it maybe 8 months ago, and the system is up to date. I recently did a system update in the last week, and I bought the student Rhino in full in the last few days as my temporary subscription was going to run out soon.
I found the solution, I had CITRIX downloaded and apparently that clashes with Rhino. Once I uninstalled CITRIX and restarted my computer, Rhino has been working fine.