How to get root access or superuser on Ubuntu Linux

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For some reason my install of Ubuntu 22.04.3 won't allow my first created ID to run sudo, it gives me the following error:

...is not in the sudoers file.

I can't add myself to the sudoers list because that requires the command: sudo adduser <myID> sudo

I just went in directly as root: su root (type in password for your first user ID on the machine)

Staying as root is dangerous of course, but its the only way I can run root commands for now until I determine why adduser <ID> sudo isn't actually working properly

freaking waste of time

Sudo -i, and I put my password, did not work.. gave an error not in the sudoers file

Thank you so much, it helped!

how can I do this on a windows system