I installed glasswire, but I do not have a way to start the program from the start menu and there is no desktop icon. It also does not start after reboot.
What operating system are you using? Can you go to add/remove programs and uninstall GlassWire, reboot, then reinstall?
I am using Windows 10.
Did you get a chance to try uninstalling/reinstalling yet? I think that might solve it if you recently upgraded to Windows 10.