As you already know, most of Windows 7 and Windows 8 users have switched to Windows 10. However, sometimes there might be issues while switching to Windows 10.
Some users report that their user account isn’t created, and that they are stuck with the Defaultuser0 account, so let’s see if we can fix this somehow.
Users report that after installing Windows 10 they were asked to create account and set a password for it, which is a standard procedure when installing Windows 10.
However, after setting username and password users got “Something went wrong” error and they had to reboot. After rebooting users got Defaultuser0 account locked with a password.
As you can see, users are unable to enter Defaultuser0 account since it’s locked, and they can’t access Windows 10 at all, but worry not, there are few solutions that you can try.
What to do if you get stuck with Defaultuser0 user account when upgrading to Windows 10:
- Enable hidden administrator account
- Perform Windows 10 custom install
- Delete the Defaultuser0 account
- Install Delprof2
- Defragment your hard disk
Solution 1 – Enable hidden administrator account
First thing we’re going to try is enabling hidden administrator account in Windows. To do this you’ll need Windows 10 DVD or USB with Windows 10 setup, and here’s exactly what you need to do:
- Boot your computer using the Windows 10 DVD or USB.
- Select the correct time and keyboard type.
- Next click Repair your computer. It should be located in the lower left corner.
- On Choose an option screen select Troubleshoot.
- Click on Command Prompt.
- When Command Prompt opens enter the following line and press Enter to execute it:
- net user administrator /active:yes
- Restart your computer.
After doing this you should have enabled the hidden administrator account. Now you can use administrator account to create new users accounts and delete Defaultuser0 account.
In addition, when you start Command Prompt you can create new account right from there by typing the following lines and hitting Enter after each line:
net user “Jack” xxyyzz /add – this will create new user called Jack with a password xxyyzz
net localgroup administrators “Jack” /add – this will make turn user Jack into administrator
Solution 2 – Perform Windows 10 custom install
If enabling a hidden administrator account didn’t solved the problem, you can try to perform a custom install of Windows 10. To do that, just follow these instructions:
- To perform this you’ll need Windows 10 DVD or USB with Windows 10 setup. Just start the setup and follow the instructions.
- When you get to the Which type of installation window choose Custom install.
- Before using this option make sure that you backup your files.
- Now make sure to choose the right partition to install Windows 10, it’s usually the Primary partition. If you don’t format your hard drive, your documents and files will be saved, however all of your installed applications will be removed.
- Follow the instructions and wait for the installation to finish.
If you want to know how to create a bootable USB drive with Windows 10 on it, follow the steps in this useful guide to do it in no time. Also, if you want to backup your data, take a quick look at this article.
Solution 3 – Delete the Defaultuser0 account
Another solution is to boot in Safe Mode and try to log in as Administrator. Once you manage to do that, you can add new users.
You can also try to completely delete the respective user profile. Go to Control Panel > User accounts > Delete the profile.
You can’t open Control Panel on Windows 10? Take a look at this step-by-step guide to find a solution.
You can also delete the defaultuser0 users from the Local Users and Groups folder.
- Go to Start > type lusrmgr.msc > open the Local Users and Groups folder
- Right-click on the defaultuser0 account > select Delete
- Go to C:Users and select the defaultuser0 folder > delete it.
Keep in mind that the lusrmgr.msc command is not available on Windows 10 Home. You can use it on Windows 10 Pro.
A third way to delete the defaultuser0 account is by using Command Prompt.
- Go to Start > type CMD > right-click on the first result > select Run as Admin
- Type the following command and hit Enter: net user defaultuser0 /DELETE
Windows won’t let you add a new user account? Follow some easy steps and create or add how many accounts you want!
Solution 4 – Run Delprof2
Delprof2 is an interesting little program that helps you delete inactive user profiles. As a quick reminder, many years ago, Microsoft released Delprof, a dedicated software aimed at removing users profiles. The only catch is that Delprof works only on Windows XP.
Delprof2 is the unofficial successor to Delprof and it’s compatible with Windows 7, Windows 8.1 and Windows 10.
The tools reads the account properties and when it detect an account whose status is “inactive”, it suggest users to delete it.
Other key features include:
- You can explicitly specify which profiles to be deleted
- Delprof2 bypasses security to delete profiles regardless of current permissions/owner
- It supports very long paths
- Delprof2 is free for personal and commercial use.
Solution 5 – Defragment your hard disk
The first step is to reinstall the previous Windows version which was working fine. Once the process is completed, don’t install any apps or software whatsoever.
Run disk defragmentation through the built-in defragmentation program. Do it three of four times with a half an hour pause.
Now, you can simply download the official Windows ISO files from Microsoft’s website. But don’t just reinstall the latest version of Windows which you have downloaded Microsoft. Just extract the ISO using the PowerISO software or any other software of your choice.
The next step is to run setup in your old system. A pop up message will appear and the first option is already ticked. You need to simply run the setup and your system will be upgraded to latest version of Windows.
It’s important not to click on the second option. This will upgrade your old Windows version.
That would be all, I hope this article helped you with your Windows 10 upgrade problems. If you have any comments, questions, or suggestions, just reach for the comment section below.
If you need help concerning a particular upgrade issue, tell us more about the problem that you’re experiencing and we’ll try to find a solution.
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- How to Manage UAC (User Account Control) in Windows 10
Editor’s Note: This post was originally published in November 2015 and has been since completely revamped and updated for freshness, accuracy, and comprehensiveness.Editor's Note: This article was originally published in November 2015 and was revamped and updated in July 2019 for freshness, accuracy, and comprehensiveness.