Windows 10: lost the windows 10 pro license.

I purchased Windows 10 pro but the auto upgraded to window 11 now. i decide to install the new system and de-activate the current active system. but I lost the product key even mail also lost the purchase details, where can i find the prod key or recover it.

:)

 

Windows 10 Pro lost Pro license

Hiya.

I've got a PC running windows 10 pro here with a windows activation error.

It says that it can only find a digital license for Win 10 Home. I had previously upgraded it to pro, but i swapped out the hdd for an ssd and it won't reactivate.

How can I reactivate it on Pro?

appreciate the suggestions.

Alex

 

Windows 10 upgrade license

Hello guys,

I have 1 license of WIndows 8.1 FPP/retail license. I want to upgrade to WIndows 10, but I one thing is unclear to me.
If I upgrade, will WIndows 10 license be retail or it will "turn" into some sort of OEM license?

I ask this because I upgrade my PC, you know, more memory, replace HDD, and I intend to upgrade the MB and CPU to Kaby Lake platform sometime in the future, (and of course sell the replaced hardware)
This thing is not clearly mentioned anywhere.

Thank you.

 

Free upgrade from Windows 11 Home to 11 Pro using 10 Pro retail license

My current computer has an activated Windows 10 Pro retail license. I'm planning to replace my current computer by buying a new computer that comes preinstalled with Windows 11 Home, and then I understand I can use my 10 Pro license to upgrade to 11 Pro for free.

What's the most straightforward way of accomplishing this? The obvious approach that comes to mind involves two steps:

1. Reinstall Windows 10 Pro on new computer and activate with my existing retail license.
   
2. Upgrade new computer to 11 Pro for free through the settings.
   

Is there a simpler way of doing this without having to reinstall Windows 10? For example, would it be possible to somehow "trade in" my Windows 10 Pro license for 11 Pro? I'm fairly new to Windows licensing and am just trying to understand what is possible/best practice, with minimal effort.