Hamachi VPN error - Cant fix!?

I disabled my hamachi connection via "Network and Sharing Centre" as I was advised to by a friend to sort out my internet problems, now I cant connect to hamachi because of a VPN error, I have searched how to fix it and it says go to "Network and Sharing Centre" and change a setting on hamachi, however it is no longer there as I disabled it, how do I get it back up?

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia��).