WinKey +r
Type services.msc
Close all Hamatchi services running
Close Services.msc
WinKey + r
devmgmt.msc
Right click the device that is troubling you (the one with an exclamation mark)
Select "Uninstall", and TICK the option to also remove the driver in the process
Close Device Manager
WinKey + r
appwiz.cpl
Programs and Features: Uninstall Hamatchi
Close P&F
Reboot
Reinstall Hamatchi
Repost with the driver names and version if the problem persists.