Windows 10: Insider laptop suddenly not activated

hello all,
today I suddenly noticed that my laptop is no longer activated... don't know what happened.
I found out that was using local account, but then I immediately switched back to microsoft account and still can not activate windows because I do not have valid digital license or valid product key.
If I click on solving problems then it is saying that product key can not be used with this version of Windows since they found Windows 10 Home digital license for this device.
Checking https://account.microsoft.com and my laptop is there listed with Windows 10 Professional OS as it always was.
Why and what happened and how to solve it ?
I do not have product key. The key is generic ending with 3V66T.

:)

 

Cannot Active Insider Preview Program After Reinstall

Hi,

Failure to activate the Insider Build Preview can be caused by a change on your device configuration or a possible corrupted component. To isolate your concern, we'd like to ask the following:

• Which Windows build version is running on your device? You can type
  winver in the search box and press Enter to help you identify the build.
  
• Are you getting any error messages?
• What are the troubleshooting steps that you've performed?

In addition, we suggest that you check the Feedback Hub for related submission regarding the builds that were affected by some activation reported issue. Confirm if the build that you're trying to activate is one of the affected
builds and check the comment section for suggested solution.

We'll appreciate if you can send us an update.

 

Best laptop under $800??

Well the last one I suggested seems to be the best for 650$

EDIT: to facilitate your search...

Laptop GFX benchmark list

Laptop CPU Benchmark list

 

Windows 10 Activation (Insider)

This is exactly what I'm seeing and am still investigating. I don't want to get your hopes up though, as I think you're out of luck, unfortunately. I might be too, but I'm in with a chance and here is why.

I installed my Insider copy right at the start of the program on VMWare Player where it activated with my Live account. It also upgraded to the RTM copy when it was released and is activated. So far so good.

I then downloaded the ISO using Microsoft's tool and installed a clean copy on my laptop, again logging in with my Live account, but it won't activate, just like you've seen. Reason given is that the key is blocked. However, what I'm now gonna do is image that VM onto the laptop's HDD and see if that works. It may remain activated (doubtful), require a phone activation or simply not activate at all. Let's hope it activates.

BTW, I never opted out of the insider program and am still on the Fast updates, so my OS version is currently showing as 10.0.10532, which is later than the 10.0.10240 RTM build - it did a full OS install for it.

Finally, even though you can't activate yours, you can still do the upgrade thing from W7 or W8/8.1 so you're not actually stuck, you just don't get the Insider version.