Windows 7 BETA and Windows 7 RC (Release Candidate) are the two official Windows 7 versions that had released to public. Both are free for download, but activation is required. You can use Windows 7 without activating for 30 days, after that you have to get register activation, or else your PC will not let you login anymore.

It’s very simple to get real activation code for Windows 7 and it’s free. All you need is just a Microsoft Live ID (MSN, or HOTMAIL account)

1. Go to this link http://www.microsoft.com/windows/windows-7/download.aspx

   

   You should see something like this, chose the version of your OS 32 bit or 64 bit and then chose your language.

2. Enter your Live ID and password

   

3. Wooha ! free official activation code are yours, here is an example of what you will get

   

Now you have your own unique product key, note for Windows beta and Windows RC both Product key will work.