Windows 10: Don't have access to admin account.

I recently got a new computer from a friend of mine at school (it runs windows 10). I was able to login to his account but i cannot wipe or add accounts because his fathers account is admin. I have tried to add the built in admin through the command screen but it gives me an access denied. Is there any way for me to get into the admin account or factory reset the computer without the admin account?

:)

 

Admin account locked

My admin account is locked don,t know how to unlock but have a standard user to login please suggest can I do something from normal user to unlock the admin account.

 

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:
   
   Code:

   net user test /del

 

Settings can't be opened using the built-in administrator account


Hello,
Unfortunately I have the same issue as Dabz from upgrading win7 to win10.
I've tried opening settings using all the suggested methods and it will not load using my account with Administrator access nor the built-in Administrator profile. I also tried other methods not listed such as using Run. Control panel is just a stepping stone to add users in Settings.
I'm also having explorer.exe issues, which I believe is preventing Settings from loading.
Using cmd (Admin) I successfully created a new user profile [and granted admin access also using cmd (Admin)], however win10 will not allow this account to log on. win10 does not list this new user within control panel but it does in the start menu. win10 will not allow to log in or switch to the new account via the start menu either.
I can access settings in Safe Mode but this will not allow me to create a new account.
Any help/suggestions will be greatly appreciated.
Cheers