I still have the same problem.
the only way I can make it work is to reboot machine, then after BIOS screen, press F8 so I can chose from WIndows boot options (safe mode, network support, etc). There is one of the last options that say Disable drivers signing ennforcement. After picking that option, driver installs correctly. It makes it work but after another reboot drivers will fail to load.
Definitely we need a solution from LogmeIn asap.