Windows 10: Windows not activated after clean install

I did exactly this. I upgraded from a windows 7 pro system and everything went fine. Windows 10 activated. Since I am evaluating this for future company use I then burned a ISO DVD and did a clean install. That went fine also however Windows will not activate now. I called Tech support and they said to wait for an update and then it will reactivate. I just did one and still not active. How long do we need to wait? should I roll back to 7 pro and reinstall?

:)

 

Not activated after clean install

I'm happy for you. I'm still waiting from a week..yes i'm sure that windows 10 was activated after performed the upgrade of windows 8.1.

 

Not activated after clean install

I downloaded Windows 10 yesterday. This is the steps that I took:

1. Downloaded Windows Media Creation Tool

2. Made a bootable CD with the Windows 8 .iso.

3. Upgraded Windows from the Media Creation Tool.

4. After Windows 10 was installed, I did a clean install of Windows 10 on top of the upgraded Windows 10.

I don't know what I did wrong or what, because I'm pretty sure that I followed everything that Microsoft told me. However, it says here that my Windows 10 isn't activated. I've been waiting for a day to see if the Windows servers activate it. But I don't
know... It doesn't seem like it.

Is there anything I can do? Because I'm considering reinstalling Windows 7 and then upgrading again.

 

Restart the computer fully - not just shutdown, but restart. Open an elevated command prompt ("run as administrator" command prompt). type slmgr /ato

What result do you get?