Login as Administrator

Hello,
Good afternoon sir,
Sir, I am using windows 10 and I have setup a password for security purpose. Now, I don't need the pass word. and so, I searched the measure to remove the password. But I failed to find some solution. There after I heard about "netplwiz" , which I tried and a box appeared having two options, first was Administrator and the second one was STANDARD . I opted other. Now, I cannot log in as administrator and cannot make changes . When I try to open device manager the following message is displayed "YOU ARE LOG IN AS STANDARD USER, YOU CAN SEE DEVICE SETTING IN DEVICE MANAGER, BUT YOU MUST BE LOG IN AS ADMINISTRATOR TO MAKE CHANGES"
The pc is working well without any problem, except above.
Sir, May I request you to kindly guide me as to how I can log in as Administrator please ?
I will be thankful to your team for the solution sir.
Thanking you sir in anticipation.