Windows 10: My windows product key is no longer visible on my account. How to find what had happened?

As above:I have linked my product key to my account so i can activate Windows using that. Now i have new machine and previous one is wiped and removed. Still not able to activate.Any help?

:)

 

User accounts not visible in Windows login screen.

Hi,

I realize that you are unable to see the user accounts in the Windows login screen, let me assist you.

This issue might happen if the user account is disabled, I suggest you to follow the below steps to check if the user accounts are disabled and try enabling them.

• 
  Press Windows key + X key and click on
  Computer Management.
  
• 
  Click on Local Users and Groups in the left pane.
  
• 
  Double click on Users option and check if the accounts are visible.
  
  (The user accounts with a downward arrow symbol on it are disabled accounts.)
  
• 
  Double click on the account that you want to enable.
  
• 
  In the General tab, uncheck the option
  Account is disabled.
  
• 
  Click on Apply and then Ok.
  
• 
  Restart the system and check if the issue is resolved.
  

Hope the information helps. Kindly write back to us for further assistance on Windows. We will be happy to assist you.

Thank you.

 

Remove account

I suggest you backup your personalized files first before removing the account.
To delete an account, follow these steps:

1. Press WIN + X keys and click Command Prompt (Admin) from the menu.
2. Type the following command and press Enter. Replace test with the name of your sister's account. Code:

 

Something Happened ... Failed to Validate Product Key


I'm having the same problem. I'm running Windows 7 64-bit, the Windows 10 pre-check is green, I've tried updating to 10 using Windows Update, the Media Creation Tool and Techbench. I following the instructions very carefully on Techbench, I've verified that my version shows that it is fully licensed for Windows 7 Pro using slmgr /dlv, fully updated 7, disabled my AV, created a new Admin account to run the update, I still get Windows 10 Update Something Happened Setup has failed to validate the product key. Any suggestions would be appreciated.