Windows 10: Invalid or entering it wrong? Need help with an old PC product key

Hello,To start out I want to explain how I came to this issue. I've had this laptop since maybe 2013 and I used it a lot until I got my surface pro 4. In 2016 the problems started with my pc's fan overworking itself. It still overworks itself on and off. I was using windows 10 month or so ago and it started keeping me locked out. I turned it on and entered my password as usual, preformed an update, and after the update finished I restarted it. When I restarted it and entered my password it was said to be the wrong one when I know it was correct because I had used the same password to log in be

:)

 

the handle is invalid HELP!

I'm going through the same thing right now. i tried to go in and come in on safe mode but it still would give me the same error. Now it will take my password, start to log in and bring up my main screen but it blip then goes back to the sign in page where i put my password in it would give that 'invalid handle" message.

 

the handle is invalid HELP!


Did a search and saw this.... worth a try..

• Step 1: Press "Win Key+R" and type "cmd" in the "Run" command box and hit enter to open command prompt.
• Step 2: Type the command "net user UserName NewPassword", in the command prompt and hit "Enter". If you want to remove this password, just replace NewPassword with *.

 

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.