Windows 10: How do I use command prompt to erase information and change logins?

I found an HP laptop somebody had thrown away in the trash. The laptop actually works but upon starting the computer up, it has a user account and password on the device that obviously I do not know. It does not give me the option to use an administrator account or guest. I know that I can access the bios and use command prompt to access something inside the computer allowing me to either alter the password or to remove the account and password or something of the sort allowing me to log into the device so that I am able to factory reset the device. Please help. Why do I need to type into comm

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command prompt will not open in safe mode with command prompt

Would I just follow the same steps within safe mode after hooking up to the other system?

 

Going to local login broke ability login without password prompt

Hi,

Thank you for posting in Microsoft Community.

We understand how you feel about the situation. We're sorry for the trouble.

1) Have you set up same password for both Microsoft account and local account?

You can sign in either with Microsoft account or local account. I suggest you to change the password for both the accounts and check if it helps.

1) Open settings and click on accounts.

2) Click on Your email and accounts.

3) Now in the right pane click on Manage my Microsoft account. It will redirect to your Microsoft account page.

4) here click on change password and try to sign in again.

You can also change password by clicking on Sign-in options in the left pane and choose change password in the right pane.

If the issue still persists, you can follow the below steps.

Please follow below steps:

• • 
    Click on power button at left bottom corner, press and hold
    Shift key and click on Restart.
    
  • 
    Click on Troubleshoot.
    
  • 
    Click on Advanced options.
    
  • 
    Click on Startup Settings.
    
  • 
    Click on Restart.
    
  • 
    Login to Microsoft Account and create a new administrator account.
    

If you’re not able to login using Microsoft account then refer to below steps and check if it helps.

Activate Inbuilt Administrator Account.

Follow the below steps:

• • 
    Click on power button at left bottom corner, press and hold
    Shift key and click on Restart.
    
  • 
    Click on Troubleshoot.
    
  • 
    Click on Advanced options.
    
  • 
    Click on Command Prompt and enter following command.
    
    net user Administrator /active:yes
    

Now reboot your system and login to inbuilt admin account and try to reset password for other account. Once you reset password login to other account and to deactivate inbuilt admin account enter following command in elevated command prompt.

net user Administrator /active:no

Hope this helps. Please reply to us with the status of the issue.

Thanks.