unable to set admin password in 2021 inspiron UEFI

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  unable to set admin password in 2021 inspiron UEFI. i used to have admin password. but then i decided not to have any admin password in UEFI. to remove the password i followed the following steps.

1. turned on the laptop.

2. entered the admin password. “xxxxxx”

3. went to the password section in UEFI.

4. in the admin password section, entered the old admin password “xxxxxx”

5. in the “Enter new admin password” box, i DID NOT enter any value. i kept it blank. 

6. i pressed “enter” on keyboard.

7. in “confirm admin password” box, i again did not enter anything. I did not type anything. 

8. i pressed “enter” on key board.

9. At the bottom of the screen, i confirmed and saved my changes and clicked on EXIT

now when i went to the UEFI password section, the admin password boxes are grayed out. i am unable to set a new admin password again. 

please have a look at the screenshots.