Sorry if this has been answered in an FAQ somewhere. I don't think it has though.
I was wondering if there was any official word from microsoft on the following.
Say I was to install Windows 7 RC on my PC and wanted to use the retail version of windows 7 when it comes out.
Do you think there will be some kind of option to turn your RC version of Windows 7 into a legitimate working one once you have purchased it to save reinstalling the operating system again and all of my applications?
At this time there is no word. But if Microsoft follows the path that they always have, no. There will not be a option to upgrade. They always say that a Beta should not be installed in a Production environment and that you should always Fresh Install the newer Builds that are released.
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R.I.P. Danny L. Trotter
14 Nov 1945 - 4 Sept 2009
Images created by CarnageX | Decaptured...Listen! | Visit Baezware!! | You've been Mak'd! | 儿做好 I do not accept support questions via EMail, PM, IM or my Spaces page! .:|:. This is what happens when an unstoppable force meets an immovable object. Thanks to all the guys on the staff for your support in my time of need. Hefe you are my personal Hero for your contribution.
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Protect your PC and data. Be sure to back up your data and please don't test the RC on your primary home or business PC.
Right there should tell you that this is not meant to be a everyday use OS. It is still buggy and can still cause problems. If you use it daily you are doing this at your own risk.
__________________
R.I.P. Danny L. Trotter
14 Nov 1945 - 4 Sept 2009
Images created by CarnageX | Decaptured...Listen! | Visit Baezware!! | You've been Mak'd! | 儿做好 I do not accept support questions via EMail, PM, IM or my Spaces page! .:|:. This is what happens when an unstoppable force meets an immovable object. Thanks to all the guys on the staff for your support in my time of need. Hefe you are my personal Hero for your contribution.
<<<< If I help you, or you just like what I said, rep me
The answer to upgrade from Win 7 RC to Win 7 Final Release can be found at the below link. I also included the Q and A from the page for a quick answer to the OP's question.
QCan I upgrade from the RC to the final version of Windows 7?
AWhen you install the final version of Windows 7, you'll need to do a clean installation. So plan on backing up your data then reinstalling your applications and restoring your data.
The answer to upgrade from Win 7 RC to Win 7 Final Release can be found at the below link. I also included the Q and A from the page for a quick answer to the OP's question.
QCan I upgrade from the RC to the final version of Windows 7?
AWhen you install the final version of Windows 7, you'll need to do a clean installation. So plan on backing up your data then reinstalling your applications and restoring your data.
Windows 7 RC-->Windows 7 Retail version 
Linear Mode
