Since the first user that you create during Windows 8/Windows 8.1 installation is an administrator account, you cannot easily remove it from the computer until you have either enabled the built-in Administrator account, or you have created any other account and have added it to the Administrators group. If you have not created any local account and have created a Microsoft account during the OS installation, it is important that you should convert it to local account before you finally delete it from the system. To summarize, you are required to do the following:

  1. Enable the built-in Administrator account or create a new administrator user.
  2. Convert the first administrator account that you created during the Windows 8/Windows 8.1 installation to the local account. (If applicable)
  3. Sign-in to Windows 8/Windows 8.1 using the built-in Administrator or additionally created administrator account.
  4. Remove the first administrator account.

If you want to get the above task done, you must follow the steps given below:

  1. Log on to Windows8/Windows 8.1 using the manually created administrator account.
  2. On the start screen type CMD.
  3. From the search results, right-click Command Prompt.
  4. From the context menu, click Run as administrator.cmd on windows 8.1
  5. Click Yes for confirmation when prompted by User Account Control.
  6. On Administrator: Command Prompt type the net user administrator /active:yes command, and press Enter.cmd on Windows 8.1
  7. Close the Administrator: Command Prompt window.
  8. Sign out, and then sign back in to the built-in Administrator account.List of account on Windows 8.1
  9. On the Start screen, go to the desktop window and press Windows + C keys on your keyboard to open the Charms bar.
  10. From the displayed options, click Settings.Setting on Windows 8.1
  11. In the Settings window, click Change PC settings.ZkzGm0U
  12. From the displayed options PC settings window, in left pane, click to select Accounts.
  13. Choose Other accounts option from the Accounts window in the left pane.Wo9PZVe
  14. From the right pane, under the Manage other accounts section, click to select the first administrator account you want to delete.
  15. After selecting, click Remove from the available options.U6RzeAg
  16. When prompted, click Delete account and data to confirm the deletion.PFmpKcW