You can manage your Windows 10 default user account. Follow few a steps to enable or disable a default user account in Windows 10.
Method 1: Enable or Disable Default User Account Using Computer Management
1. Type Computer Management into the search box and select the Computer Management option.
2. From the System Tools section click on the Local Users and Groups arrow icon and click on the Users folder (System Tools > Local Users and Groups > Users).
- Right-click the DefaultAccount from this list and select the Properties option.
Enable: Click behind the Account Is Disabled checkbox to uncheck it. Press the Apply and OK button to enable the default user account.
Disable: Tick the Account is disabled checkbox, if you see that this check box with tick sign then you don't need to click it. Press the Apply and OK button to disable the default user account in Windows 10.
Method 2: Enable or Disable Default User Using Command Prompt
1. Input the CMD text into the windows search box and select the Command Prompt option.
Enable: Type the net user defaultaccount /active:yes text and press the Enter button to enable it.
Disable: Type the net user defaultaccount /active:no text and press the Enter button to disable it.