How to Enable or Disable Built-in Elevated Administrator Account in Windows 10
This tutorial will show you how to enable or disable the hidden built-in elevated Administrator account in Windows 10.
Enable or Disable Built-in Administrator in Command Prompt at Boot
NOTE: This option is good for when you are unable to sign in to Windows 10.
1. Boot from your Windows 10 installation USB or recovery drive, and open a command prompt at boot (Shift+F10).
2. In the command prompt, type regedit, and press Enter. (see screenshot below step 3)
3. In the left pane of Registry Editor, click/tap on the HKEY_LOCAL_MACHINE key. (see screenshot below)
4. Click/tap on File (menu bar), and on Load Hive. (see screenshot below)
5. Open the drive (ex: D ) that you have Windows 10 installed on, and browse to the location below. (see screenshot below)
NOTE: The drive letter (ex: C) will not always be the same at boot as it is from within Windows 10.
9. In the right pane of the 000001F4 key, double click/tap on the F binary value to modify it. (see screenshot above)
10. Do step 11 or step 12 below for what you would like to do.
A) In the first column of line 0038, change 10 to 11, click/tap on OK, and go to step 13 below. (see screenshot below)
NOTE: You would do this by clicking to the left of 10 to place the cursor there, press the Delete key, then type 11.
13. Close Registry Editor and the command prompt. (see screenshot below step 3)
14. Click/tap on Continue to startup back in Windows 10. (see screenshot below)