author avatar
    Specialist of Customer Service Dept.


A lot of users say that they are stuck with an unknown account defaultuser0 after trying to reset or upgrade to Windows 10. Apparently, there is no password for defaultuser0 account and Windows 10 cannot be accessed. Why did this happen? Next, we will share some methods and tips with you on how to quickly access Windows 10 when encountering the defaultuser0 problem. Besides, let’s learn about how to delete defaultuser0 account or set a password for it.

1. Why did Windows 10 Create defaultuser0? What is the Login Password?

Some users said that they came across the defaultuser0 problem after they installed Windows 10 system image from Microsoft’s website. And some users said that Windows 10 automatically restarted after it was reset. Unexpectedly, the unknown defaultuser0 account appeared even restart computer.

windows 10 defaultuser0 password

Tips: What is defaultuser0 account?

Defaultuser0 is a temporarily created account while system is installed. It does not belong to any users or equipped with any configuration file. However, you will be required to enter the password when it is listed in the login screen. From the support team of Microsoft, there is no correct password for defaultuser0 since the account has been encrypted. Actually, we can create new account, disable the defaultuser0 or even reset its password to solve this problem.

Although defaultuser0 account is considered harmless, it does bring troubles. If one day you encounter the defaultuser0 in the login page and cannot access Windows 10, the following solutions could help you regain access to Windows 10. If the account you ask to enter password for is other type of account, please click to get more about how to reset Windows 10 password with different methods.

2. Can not Login Windows 10 with defaultuser0?

Approach 1: Create New Account / Disable Account or Remove Login Password

Renee Passnow – Professional Windows Password Remover

Remove Windows Login Password 3 steps for whole password remove process.

Enable/Create Administrator One click for creating new administrator and enable the disabled account.

Widely Use New version supports UEFI boot model, which can be used on more computers, laptops and even surfaces.

Multifuctional Data transfer, data recovery, bootable problem recovery can be run without system.

Highly compatible Windows 10/8.1/8/7/XP/Vista.

Remove Login Password 3 steps for whole password remove process.

Enable/Create Administrator One click for creating new administrator and enable the disabled account.

Easy to use No need of any professional knowledge or password reset disk.

Free TrialFree TrialNow 2000 people have downloaded!
Step 1: Download and install Renee PassNow in any workable Windows computer.
press to the download button
Step 2: Open the software. Select one option from [Crate a Live USB] and [Create a Live CD]. Then, select [x64] or [x86] according to your computer. Next, click on [Download Now] to download the licensed ISO. Remember to activate the software beforehand. After that, click on [Create USB] to create the boot media.
use renee passnow to create usb to reset passnword
Step 3: Boot the target PC from the created password reset USB/CD/DVD.

You will boot the target computer via a new created reset disk. Firstly, please hold a hot key to enter the BIOS menu and put CD-ROM or Removable Devices as the first choice. Please click here to know about how to change the boot order of your computer. After changing it successfully, please remember to save your setting and then restart your PC.

steps to change the boot order in BIOS
Step 4: Select “PassNow!”.
Reset password
Step 5: Create a new administrator to quickly access your PC. Please click “Create new account”.

The created administrator account named “Reneelab” with administrator rights, and its default password is “123456789”. You are able to change the password of target account with this new created administrator.

Create new account
Besides, you can also choose the defaultuser0 and then click “Disable” or “Clear Password”. Then please restart the computer to login Windows 10. After that, you can delete the defaultuser0 or set password for it.
remove password for defaultuser0 account

Approach 2: Enable Safe Mode and Create New Account

Users need the administrator privilege if they choose this method. If you do not have the administrator privilege, it is recommended to solve this problem with System rescue tool within 5 minutes.

Step 1: Hold “shift” key and click the “Power” on the right bottom of the login screen. Then click “Restart” at the same time to enter “Choose an option”.

Step 2: Select these options in order “Troubleshoot” – “Advanced options” – “Startup Settings“. Finally, click on “Restart” on the screen of Startup setting.

startup settings

Step 3: After restarting the computer, please press “F6” or “6” to enable safe mode with command prompt.

safe mode

Step 4: When you get into safe mode, you will see Administrator command prompt. Please type in: net user aaa(New Account name) /add, and then press “Enter“.

If you want to set a password for the new account, you can type in: net user XXX(New Account name) bbb(Password ) /add

windows 10 defaultuser0 password

Step 5: Restart the computer after the command completed. Then you can use the new created account to access Windows 10.

windows 10 defaultuser0 password

3. How to Enhance the Safety of defaultuser0?

Using Renee PassNow can securely and quickly help you regain access to your account without data lost. If you intend to keep it, it’s suggested to set a password for it or hide it for better account and personal information security.

Option 1: Set Login Password for defaultuser0

1. Right click “This PC”, select “Manage” to open computer management, and then click “Local Users and Groups” — “Users”.
2. Right click “defaultuser0” and select “Set Password”. Then click “Proceed”.
3. Enter the new password and confirm it. Finally, click “OK”.
Tips: This way works only with administrator account.
set password for defaultuser0

Option 2: Hide defaultuser0

1. Search “cmd”. Then please right click Command Prompt and select “Run as administrator” from the menu.
Note: Please create a administrator account before you go through this process if you are not administrator.
run command prompt as administrator in start menu
2. Type in: net user defaultuser0 /Active:no and press enter.
deactivate defaultuser 0 with cmd
3. Restart your computer and defaultuser0 will not show on the login screen anymore.