[MTUSUPPORT]

Bendrew,
It really does not have much to do with your Email/Registration Code. These just allow you to install the software from the database, then what happens is it fingerprints your computer with about 5 different parts of the system. If any of the 3 parts no longer match correctly then you get this problem. Thus the computer and hardware is the real issue to make it look like a different computer, instead of the original parts it was installed on.

If you are worried about it, and to get around your issues, you could always Remove Hoster before you upgrade your computer, then it would free up your registration code. Once you upgrade your hardware, reinstall Hoster and you would not longer have an issue.

Windows 10 will cause this for EVERYONE, as it makes the computer look like a brand new system, no getting around this.

I hope that this helps you understand what is happening and how to get around it.