Amount of registered users help & questions.
 

After moving from phpbb to vbulletin, it's been almost a month now and I've been trying to delete users using the prune user options.

I find users who hasn't been logged in for 100 days and I have around 4,000 of them. My total members are like 1,700, so 1,700 is active and 4,000 isn't. The only issue is I can't delete the unactive users, it says invalid action, like there isn't any of the users.

Is there a way I could also change the number of registered users so it doesn't look like my forum is uneven.

Thanks.