If the laptop only starts with a blue screen every time, can you also reinstall Windows 10 using a USB stick and enter the key?

If the laptop only starts with a blue screen every time, can you also reinstall Windows 10 using a USB stick and enter the key?

You can always reboot, but you may have to set this in the BIOS, but you can no longer use the code from the last Windows

To test whether it is possibly not on your laptop, you can simply boot Linux

The key is the one that's already there (with Windows 10) and that's the same laptop, why shouldn't it work anymore?

Yes, of course. But you can also do a repair.
If you have important data on your laptop that you don't want to lose, you should first back up this data using a rescue CD / DVD, if you haven't already created something anyway.

Then you don't need a key after reinstalling WIN10! However, you should register with the same Microsoft account!

Because you have already used it and the key is only valid once, you can only do this with a windows 7 key that you boot windows 10 and do not use the same windows 10 key

Or so

Yes, that would be possible!

Google times you can also repair Windows with the stick without data loss

My account is blocked where I started with Win 10. So I'm there without an account… So it could be that I don't have the key there anyway. Could it be that I can no longer enter the key because it is in the blocked account?

Yes, probably. Then there's the variant by phone - but that is what you get when you activate it.

Can you do anything with the supplement… Do you know how to solve the actual problem. Maybe the problem comes up again

Complement?

But I don't have a Windows 7 key… At the beginning it was just Windows 8.

With the question above.

Boot with an installation CD / DVD or stick and do a repair.
The boat sector is being repaired.
After that, see more…

Windows 10 CD? And then reinstall?

Exactly, but before the installation there's also a choice - repair!

And that's exactly what I mean…

Ah OK thanks!

Good luck and good night - I'm going to bed now…