Windows 10: Using an old Windows 10 product key for a new PC build

I got a laptop 2 years ago that came with windows 10 on it. Juice spilled on it, and now it's broken. Won't turn on or light up even when plugged in.

Is there an easy way I can recover my Windows 10 product key from it, or does Microsoft prevent you from doing this? I would like to use it for a new PC I am building instead of buying a new one.

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:)

 

Product key association disable on old pc

Hey,


I sold my old pc to a friend. He installed some missing parts (HDD, GPU and RAM). Then we installed Windows 10 Home 64-bit version from USB stick. I was surprised to see that windows was automatically activated after that. I did some digging and found out that it is using my product key, which i use now in my own new pc. My friend does not have his own product key, the idea was that he just uses the unactivated windows with limited features.


I uninstalled my Windows 10 product key via command prompt in friends computer (as i understand this is only local solution, if he reinstall windows or clicks the active button, it reactivates automatically with my product key) and now it says windows is not activated, but my product key is still shown with Produkey app in his pc. So far windows is still activated my own pc.


My questions:

1. Is this all i need to do?
2. How do i get rid of product key showing still with product key showing apps on my friend's computer?
3. Is there a way to get rid of association of my product key on that old pc that i sold to friend?

EDIT: I originally installed windows 10 via upgrade option from Windows 7, if that matters.

 

Need help with transferring Windows 10 to new PC

*Nevermind I figured it out. I just bought a license key for $29.00. Thx though.
So my friend asked me to build him a new computer for work. The last one I built him was during the windows 7-10 upgrade grace period. I used to load windows 7, use windows loader to put in a product key, activate it, then upgrade to windows 10. Now that the grace period is over, and I'm working with new hardware, I was wondering if it is possible to install windows 10 from an already functioning computer that operated on a sata SSD to a new computer with an m.2 nvme SSD, using just the product key from the current windows 10 off of his computer. I use a program that grabs the product key called ProduKey.
Should I do a fresh install of windows 10 using his key after deactivating it from his current PC , instead of cloning drives correct? It would be nice not to have to pay microsoft $200 for windows 10 if he already has it and plans on not using his old pc anymore.

 

Windows 10 Product Key(New PC)

Hi I built a new computer recently and I kept my OS drive from my old build. It wasn't activated due to the motherboard change so I used my student windows key. I didn't use the student key previously on my old build. Eventually I want to get an
OS drive on my old PC while use my new one. Can I still use my old Windows 10 Home key on my old PC? I did the upgrade to student without thinking of it deleting my old OS build. Also, the student OS build is only for one PC. Is it still possible to access
that old key on put it back on my old PC?