If it came with the PC when you bought it, it's the released version.

>I really don't know. I bought a new PC (toshiba) which came with Win 8 preinstalled. And I believe it is a Home edition. So how would I find out if this is a release version?
>
>>Are you running the release version of Win 8 or a preview?
>>
>>>Thank you. I am going to look again for the download.