This is a little strange, but I'm in a situation where Windows 8 has a particularly troublesome bug that seems to have been resolved in Windows 10.

I realize that we're only a little over a week to release, but unfortunately I cannot wait to install Windows 10 if at all possible. Is one able to upgrade to the Windows 10 beta now and then still receive the free upgrade license after it is released to for public consumption or will I run into problems?

Could you provide some documentation on this point as I have not been able to find any details on this particularly odd situation yet.

  • can't you just dual boot windows 10 preview side-by-side or install it in a virtual machine? – phuclv Jul 21 '15 at 4:19
  • Just make sure Win 8 is already activated and launch the upgrade from within Windows. I did this an it adopted my Win 7 key. – cybernard Jul 21 '15 at 4:33

I got it from https://insider.windows.com/ You may have to google and alternate source if they disabled it so close to launch.

Yes, I already did just that. Build 10240 is the RTM build that will show up on July 29th.

Google Windows Insider Preview and get the ISO from a microsoft.com site.

Either burn your ISO to DVD or unpack it on your local hard drive.

Run setup.exe from within your activated copy of windows.

Even if you don't get 10240, after installing, run windows update and it will upgrade you to 10240.

Note: Its downloads roughly 2-3gb (within Windows Update) so be patient.

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  • No, 10240 is not meant for installing individually. Even if you can install it, you can't activate it anyway. You must upgrade it from previous preview versions. "All pre-release product keys published earlier for builds of Windows 10 Insider Preview have been deactivated and will no longer activate any Preview builds, including Build 10240" winbeta.org/news/… – phuclv Jul 21 '15 at 4:18
  • Your FAILED assumption is that I used a free product key. I installed Win 10 on top of an activated Windows 7 and it never asked me for any product keys. I just adopted my Win 7 key. As you can see I am activated. – cybernard Jul 21 '15 at 4:31
  • So the key to this question is to simply use an existing Windows 7 or 8 key in order to activate an install of 10 or build 10240, correct? – ylluminate Jul 21 '15 at 4:39
  • @ylluminate I don't if your old key works keying it in manually, but if you run the setup.exe (on the Win 10 DVD) from within an activated copy of Win 7/8/8.1 it should adopt and/or upgrade your key. Even the "Evaluation version", in the lower right hand corner of the screen is gone. – cybernard Jul 21 '15 at 4:45
  • Good to know @cybernard. This should make life a good bit easier then and I'll plan to move forward in that direction here and test my luck. – ylluminate Jul 21 '15 at 5:06

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