>>CTP: Community Technology Preview (pre-Beta)
>>Reinstall as Sergey said? Yes.
>>
>>You should not use beta or CTP versions in production or otherwise important machines. You never know what bugs and other issues are there.
>
>Well Microsoft should make that clear to people, shouldn't they.
>Why do they expect everyone to know what a "CTP" is, and what it's 'limitations' are?????

Because they are the creators of the language. They make the news. And if you don't see the notice, no matter where it's buried, don't be surprised if one day big yellow machines come to tear your house down (to make room for the highway shortcut) - the information was out there, publicly available.