I recently updated Rhino 8, and it started giving me an error about render content. Due to this, I uninstalled it and attempted to reinstall it; however, it will not let me. When I try to reinstall, I get 2 issues: one says the old version of Rhino cannot be uninstalled, and the other one states that the path cannot be found. Can anyone help? I use Rhino every day so this is a bit frustrating that I can no longer access it.
It sounds like your uninstall was not complete. If you haven’t done so already, try following the advise here: Manually Uninstalling Rhino [McNeel Wiki], before doing a new install..
If that doesn’t help, or you’ve already been down this road, the best thing to do would be to contact Rhino tech support directly via the contact details at Rhino - Rhino Support