Submitted by
Dmitro
on
Programaticaly restore admin user could be done with this code:
use Drupal\user\Entity\User;
$user = User::create([
'name' => 'admin',
'mail' => 'admin@example.com',
'status' => 1,
'roles' => ['administrator'],
'pass' => 'newpassword',
]);
$user->save();